Continuity Snarl: Difference between revisions

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However, the whole idea of a [[Shared Universe]] is that different creative teams will eventually take over. Sometimes Writer A of Title A will leave and Writer B will take over, while at other times Writer A's character will guest star or make a [[The Cameo|Cameo]] apearance in Writers B's title. People being people, those different creators will have their own ideas. They'll have different ideas about what the [[The Verse|'verse]] should be, about what has worked and what hasn't, what might work and what doesn't.
 
The new creative team will also want to make their distinct mark on the 'verse and their readership; as such, they'll have their own things that they want to add, [[Armed Withwith Canon|things they disapprove of and want to remove or ignore.]]
 
Things that were previously essential may become irrelevant to the new team, and different character traits and events may be emphasized or ignored. They ''change'' things.
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Unfortunate, if you have a fan-base which likes everything arranged in a neat, tidy little pattern and isn't shy about voicing their opinion when this isn't the case.
 
This is particularly a problem for [[Comic Book Tropes|comic books]], especially in [[The DCU|the DC Universe]] and the [[Marvel Universe]], which have the long-running and tangled continuities of many a character to keep straight. Long-running TV franchises can also suffer from Continuity Snarls -- the ''[[Doctor Who]]'' and ''[[Star Trek (Franchise)|Star Trek]]'' universes have gotten especially snarled over time (although the former can easily [[Hand Wave]] this away because it's about [[Cosmic Retcon|time travel]]).
 
A Continuity Snarl can result in [[Continuity Lock Out]] for readers, especially newcomers, as it becomes increasingly difficult to keep track of what's happening in the 'verse without a Masters Degree in Continuity Studies. Creators often resort to the [[Crisis Crossover]] to try and untangle the snarl they've made for themselves -- unfortunately, this can just as easily become [[Continuity Porn]], which more often than not just makes things ''worse''. Can lead to a plain ol' [[Plot Hole]].
 
When [[Canon]] becomes too involved and self-contradictory, it starts denying new writers "room to move." When writers disagree strongly with what previous writers before them have added to the mix and are overly keen on using continuity to get rid of them (or attack the other writer), then the snarl may come from the writers being [[Armed Withwith Canon]]. If worse comes to worst, the writers may simply perform a [[Continuity Reboot]], discarding the old continuity completely and starting over from scratch. (Everything you read or watched before? It ''never'' happened! You ''imagined'' it! Either that, or it was [[All Just a Dream]].)
 
Every once in a while, the writer may just give up trying to fix everything and say, [[Broad Strokes|"Okay, it happened but not in every detail."]] [[Continuity Drift]] is when a [[Retcon]] sloooowly happens over a period of time.
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Eric Burns of Websnark did a rant about it [http://www.websnark.com/archives/2008/01/retconning_just_1.html here].
 
See [[Armed Withwith Canon]], [[Comic Book Time]], and [[Author's Saving Throw]] for common causes, may result in [[Continuity Lock Out]], [[Continuity Porn]], [[Tangled Family Tree]], and [[Timey-Wimey Ball]].
{{examples}}
 
== Anime and Manga ==
* ''[[DragonballDragon Ball]]'', due to the filler episodes that are contradicted later (like Goku's pod being destroyed by Piccolo, only to be used later by Capsule Corp.) and the [[Non-Serial Movie|Non-Serial Movies]] that are still referenced later, but can't possibly fit into the show's timeline. (Gohan meets the dragon he rescues in Movie 3, but how could the Goku stop the Tree of Might from destroying Earth when Goku's either dead, fighting Nappa and Vegeta, in a hospital recovering, or en route to Namek? And if this is Garlic Jr. from Movie 1 who's pouring the Black Water Mist, then why did no-one recognise Gohan near the beginning of ''Z''?) This leads to some glaring problems, like a character who was dead being seen in a bar drinking.
* Despite mostly having only one writer, the classic ''[[Astro Boy (Mangamanga)|Astro Boy]]'' series turned into a first class continuity snarl towards the end. See, what happened was that in the final episode of the original anime, Astro died performing a [[Heroic Sacrifice]] to deliver a device into the center of the sun to stop it from dying. Shortly after the anime ended, [[Osamu Tezuka]] began a new Astro Boy story as a newspaper strip in the Sankei Newspaper, which featured Astro's melted carcass being recovered by time-traveling aliens and brought back to life before winding up trapped in the distant past (the readers' present). Because Astro had never died in the manga, however, when the collected edition came out Tezuka redid the first chapter that involved Astro, alive and well getting thrown back in time when the alien timeship crashes on Earth instead. Tezuka then produced three more different, contradictory stories of Astro's future in various publications: a pilot for a second Astro Boy series that never got off the ground which also takes place after the end of the anime where Astro is found by a completely different race of time traveling aliens, upgraded into a new body with time travel capabilities and sent back to Earth to find the era he came from; A one-shot nostalgia piece in a men's magazine, yet another followup to the anime where Astro is resurrected by [[Sufficiently Advanced Aliens]] and taken to a planet millions of light years from Earth from which he may never return, so Ochanomizu and the rest of the Ministry Of Science staff create a replacement, who turns out to be a lazy sex maniac because he was designed to be more "Human"; and finally, "The End Of Astroboy", which doesn't mention his death and simply has him in a display case in a robot museum due to being supplanted by more advanced robots and then freed by some human rebels to help them fight against said robots who have taken over the world.
* ''[[Pokémon (Animeanime)|Pokémon]]'' has some of these, particularly concerning Jessie, James, and Meowth. This can overlap with [[Multiple Choice Past]].
* Like ''Digimon'' below, ''[[Slayers]]'' has clearly stated [[Alternate Continuity]], and it's actually a bit milder here--the different continuities begin to form after the stories that compromise the first eight [[Light Novel|books]], or the first two seasons of the anime, both of which are similar enough to avoid too much confusion. It's...still complicated:
** In the novels, Lina actually meets Amelia's father, Prince Phil, and gets involved with his family feud ''before'' the series proper--the story of the first ''Slayers Special'' novel was transferred into the middle of the anime's first season: the same plot occurs, but Lina actually meets Amelia, and it goes from there. Also, the Atlas City story occured right after the very first fight with [[Big Bad|Shabranigdo]], but the anime cuts to the aformentioned family feud, and the Atlas City story occurs during the second season. This makes little sense in context because in both the first book and the first episode, Lina is on her way to the city. Finally, Amelia appears after the battle with [[Beta Baddie|Copy Rezo]] in the novels, appearing in another Saillune royal family plot that was ''also'' implemented in the second anime season. Because she joins Lina earlier in the anime, she is with them during the Copy Rezo fight, and also meets Zelgadis earlier on.
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** The remaining seven novels remove Zelgadis and Amelia and replace them with Luke and Millina, and from there comes its own story.
** Before he appears again in the fifth book, Zelgadis actually meets Xellos before the others do, hence why he knows of him when he appears. This is accounted in a side story.
** There are a bunch of manga series that are ''their own'' sets of continuity. The most notable is the [[Hotter and Sexier]] universe of ''The Hourglass of Falces'', in which all six protagonists ([[Red Headed Heroine|Lina]], [[Idiot Hero|Gourry]], [[Genki Girl|Amelia]], [[Jerk Withwith a Heart of Gold|Zelgadiss]], [[Hot-Blooded|Luke,]] and [[The Stoic|Millina]]) are together. Naturally, the latter four never met one another at any time, and it would probably be impossible, given that {{spoiler|both Luke and Millina are dead by the end of the series.}}Fans outside of Japan who are unaware of the second set of novels ([[No Export for You|as only the first eight were translated]]) probably don't know who Luke and Millina are.
** The radio dramas are also rather bad at this. The worst case is the ''Slayers Premium'' radio drama based on the short [[Non-Serial Movie]]: because of the presence of Gourry's [[Laser Blade|Sword of Light]], it's likely that it takes place after the second season of the anime. However, in the prologue of the drama, Amelia states that it had been ''five years'' since they last met-problematic, since the anime seasons each occur within one year of the other. ''Premium'' also, of course, has its own manga adaptation...
** Finally, there are cases of the dreaded [[Multiple Choice Past]], especially in regards to Zelgadis. It's never mentioned in the anime, but in the novels it's stated that he was a criminal during his time with Rezo after he was initially turned into a chimera, and it gave him a bad reputation. Also, the applications of magic vary heavily to the point of convolution.
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** There is a glaring canonical gap of about 800 years between these overlapping stories. The character's apparent immortality is never mentioned.
** It can be generally treated as a blend of a recycled cast of characters, implicit different continuities being treated as obviously different, and it can be a pretty good idea to [[Death Is Cheap|consider nobody dead in any of the series if the body has not been incinerated]].
* For the most part, ''[[Digimon (Franchise)|Digimon]]'' takes place in different continuities. However, there are still some pretty big snarls, mostly in the videogames. Digivolution lines get mixed and matched, changed, et cetera. [[Canon Immigrant|Ryou Akiyama]] is somehow from ''[[Digimon Adventure (Anime)|Adventure]]'', has encounters with the Digi-Destined, and gets sent to the ''[[Digimon Tamers (Anime)|Tamers]]'' universe by Milleniummon. None of this is addressed in either show, and for that matter, where is the other Ryou? Or his family? What happened to all of that data that Monodramon absorbed from Milleniummon? This thing was supposed to have surpassed the Sovereign. Speaking of, how many ultimate evil Digimon or ultimate godlike Digimon are there by now? So who's top dog? And how can there be a Black/Shadow Seraphimon if corrupting a Seraphimon causes a Daemon to be born? How did WarGreymon and MetalGarurumon DNA Digivolve if Gatomon still had her tail ring? Americanization also adds problems. Was Kokomon reborn? How did Diaboromon survive if the virus behind it was destroyed?
** The WarGreymon and MetalGarurumon "DNA Digivolving" thing can be explain because in the original Japanese version they were merely fusing to become a more powerful Digimon of the same level. Where Jogress evolution (the evolving method of choice in season 2) was when two Digimon combined together to advance to the next level. The dub made a mistake in referring to WarGreymon and MetalGarurumon becoming Omnimon as digivolving.
*** This is part of an even bigger snarl that happens when you work the merchandise in, as some fans consider it canon and some don't. In the show proper, Ex Veemon and Stingmon become Paildramon for the first time (the process known to the US as DNA Digivolving) and a flashback to Omnimon is shown as [[The Smart Guy]] tells the newer characters that this has in fact happened before. However, the Japanese card game refers to the DNAs as "jogress" (join and progress) and Omnimon as "fusion" when giving the requirements for bringing Omnimon or Paildramon (and the like) into play. Really, it's as simple as "sometimes two [[Digimon (Franchise)|Digimon]] [[Fusion Dance|turn into one badder]] 'mon. In Japan there's this card game with two names for this. They either ''do'' or ''don't'' mean the same thing."
*** Then some V-pets do say Omnimon is at a higher level. The easiest thing to say is that Digimon can keep getting stronger after Ultimate/Mega and just ignore whatever the level is called at that point.
*** This is only a problem, if at all, in the ''Adventure'' continuity. In the broader Digimon canon as a whole, it is accepted that '''a)''' Omegamon is the product of a Jogress evolution/DNA Digivolution, '''b)''' "fusion" is [[I Have Many Names|just another term for "jogress"]] and the English version's uniting the two under the same term is a rare case of [[Woolseyism|it simplifying things]], '''c)''' Ultimate/Mega level Digimon can evolve to other Ultimate/Mega Digimon, whether it's through Jogress evolution or otherwise, and '''d)''' Holy Rings like Tailmon's tail ring have absolutely no relevance to the process of Jogress evolution whatsoever and that point in ''Adventure 02'' was the writers not listening. Indeed, Omegamon himself is the subject of such an evolution from one Ultimate to another in the Digimon Mini virtual pet line, evolving from WarGreymon alone. Also, pretty much every [[Super Mode|Mode Change]] ever is an example of this, being little more than ''evolving'' to another Ultimate that happens to be a variation on the prior form.
** At first, we're told in supplementary materials that only [[Our Dragons Are Different|"Dramon" are true dragons]], so [[Dinosaurs Are Dragons|Greymon doesn't count.]] Then we meet ancestor of all dragons, Dracomon, leader of all dragons, Examon and Azulongmon, strongest of the four great dragons.
*** Dracomon, as the ancestor, is the one who set the archetype, so it could be argued that in-universe the "dra" part of the name actually ''comes'' from "Dracomon" and refers to him - [[Grandfather Clause|all Dramon bear]] ''[[Grandfather Clause|his]]'' [[Grandfather Clause|name, data and attributes, not the other way around]], and that's what makes them Dramon. Meanwhile, Examon is Dracomon's highest evolved form; at any rate, it is officially classed as a Holy Knight Digimon. That said, [[Square Peg, Round Trope|it's never been established that only Dramon are true dragons]] - there have been plenty of non-Dramon dragons, including ones as old as [[Digimon Adventure 02 (Anime)|Veemon]]'s family, as new as [[Digimon Xros Wars (Anime)|Shoutmon]], and as-meant-to-be-a-dragon-as-possible as [[Digimon Tamers (Anime)|Majiramon the dragon Deva]]. Hell, a very sizable chunk of [http://wikimon.net/Category:Dragon%27s_Roar the Dragon's Roar family] are not Dramon. Also, Qinglongmon [[The Four Gods|has his own group/theme-naming to which to adhere]]. On the opposite end of the debacle, there's [[Giant Flyer|Birdramon]] and Ebidramon, who, save for the names (at least one of which predates the whole "Dramon" concept) have never been indicated to be any sort of dragon at all...
**** Actually, Ebidramon is related to Dramon digimon in a way. He's a subspecies of the Seadramon family, and at an early point in the series served as the Perfect level for the family before the [[Sequel Escalation|Ultimate level]] was introduced by the Pendulum V-Pet series. That same V-Pet Series also moved Ebidramon and several other digimon up and down the evolution levels, creating even more snarl.
** Shadow Seraphimon wasn't a corrupted Seraphimon, Mercurymon just absorbed his data, the name is really misleading. Not only that, but he (Seraphimon) gave the digidestined fighting Mercurymon a much needed powerup...granted he had been reincarnated and was still an egg.
*** A "dark Seraphimon" that is a virus version of Seraphimon does exist, BlackSeraphimon. The difference here is somewhat distinct: there is a difference between a "[[Fallen Angel|fallen Seraphimon]]" and a "[[Palette Swap|Seraphimon that happens to be a virus-attribute variant]]". Not all virus-attribute Digimon are evil (see: [[Digimon Tamers (Anime)|Guilmon]] and [[Digimon Adventure 02 (Anime)|Wormmon]])
** However, as you can see, a lot of this comes from [[Fan Wank]] regarding merchandise. It is not always possible to fit everything you see on a trading card or virtual pet into the show, but the show does not contradict itself on many things... however, ''Ryo'' has it as bad as any comic book character. The Ryo-related aspects of ''[[Digimon Adventure 02 (Anime)|Digimon Adventure 02]]'' that seem random and nonsensical are explained in the games... but once you take them into account, some of the events of ''[[Digimon Tamers (Anime)|Digimon Tamers]]'' are thrown off.
* ''[[Magical Girl Lyrical Nanoha]]'' is starting to run into this with two series of manga, ''Mahou Shoujo Lyrical Nanoha ViVid'' and ''Mahou Senki Lyrical Nanoha Force'', running at the same time. They mostly manage to stay separate, but occasionally they contradict one another.
* [[Tengen Toppa Gurren Lagann]] started off with a prologue involving Simon/Kamina/[[Fan Nickname|Caption Garlocks]] ([[Fan Dumb|fans argue this fact constantly]]) waging war against "All the lights in the sky." This is ''similar'' to battles late in the series, but never really fits any of them. The producers admitted that this was a fluke on their part, that it was meant to be [[Shout-Out]] to Arcadia, and that they never got around to building up to that scene in the main series. This had led fans to suggest that this scene is an [[Wild Mass Guessing|alternate universe, a fantasy of]] [[Team Pet|Boota]], [[Wild Mass Guessing|an alternate timeline in which Kamina leads Dai-Gurren into space/Simon is sent back in time to battle the Anti-Spirals as well as become Kamina's father]].
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** Carter Hall, the [[The Golden Age of Comic Books|Golden Age]] Hawkman, was eventually pulled out of the snarl in the pages of ''[[Justice Society of America|JSA]]''. The Silver Age version is still in limbo. Carter had a few of the Silver Age concepts (most notably a connection to Thanagar) attached to him during the process. He also includes a simplification of one aspect of the Hawkgod; the Hawkgod's previous avatars included several of DC's historical characters with vague connections to hawks, and these have been [[Retcon|retconned]] into Carter's [[Reincarnation|former incarnations]].
** And now Jim Starlin, for reasons known only to himself, has written a ''Hawkman'' special in which a godlike-being points out to Hall that his Egyptian origin doesn't make sense, and insists on calling him by the [[The Silver Age of Comic Books|Silver Age]] version's name. Just when you thought it was safe to go back in [[The DCU]]...
** They did one where they merged the "Thanagarian Police officer" Hawkman with the "Egyptian Warrior re-incarnated over time" Hawkman into one being. It seemed to work, for a time. The [[DCAU]] went with two Hawkmen, but subverted them in {{spoiler|how the Thanagarian Police Officer is more of a Brown Shirt, and the reincarnated Egyptian Warrior is a clear [[Stalker Withwith a Crush]] for Hawkgirl}}. It actually ended up making a lot more sense.
** An admirable, if a bit simplified, attempt to explain Hawkman's continuity exists [http://www.comicsalliance.com/2010/07/15/hawkman-history-lbfa-comics/ here].
* The whole deal with the ''[[X-Men (Comic Book)|X-Men]]'' comics. A lot of it is the [[Kudzu Plot]] started with Claremont, but a lot of it comes from the loads of [[Retcon|Ret Cons]] and counter [[Retcon|Ret Cons]] recently.
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** During [[Grant Morrison]]'s run on the book, the X-Men travelled to China where a mutant named Xorn was held prisoner, released Xorn, and took him in as member of the team. Xorn turned out to be Magneto in disguise. The degree to which this made sense is debatable (since when does Magneto speak perfect Chinese? Why didn't Wolverine smell him?) but it was at least easy to follow so far. But then Magneto started doing drugs and herding people into ovens, and when Morrison left the book, the remaining X-Book writers couldn't retcon him as an impostor fast enough. So it was someone pretending to be Magneto pretending to be Xorn. Then it turned out there was ''another'' Xorn, who was the brother of ... the fake Xorn ... or something. There's a reason they don't mention Xorn much these days.
* Stand forward, the ''[[Legion of Super-Heroes]]''. The Websnark rant linked above goes into detail, but it's worth noting that there have been at least three separate reboots of the series, that there have also been a number of smaller [[Cosmic Retcon|Cosmic Retcons]] that involved things like long-standing characters being retroactively replaced with entirely different people, and that [[DC Comics]] at one point featured two vastly different versions of the group. And as if that weren't bad enough, an upcoming Superman storyline will have all the currently existing versions of the Legion team up.
** This story ended up being Legion of Three Worlds, which teamed up the three versions, [[Put Onon a Bus|put the later two on a bus]], and ignored the five year gap version, leaving only one Legion, the first one, whose history is now uncomplicated except for Gates, Bart Allen and XS.
* The ''[[Wonder Woman]]'' mythos has gotten increasingly confused due to [[Time Travel]] and [[Cosmic Retcon|Cosmic Retcons]], but poor Donna Troy is a particularly notorious example. She was ''created'' due to a continuity error -- the writer didn't realize that "Wonder Girl" was just Wonder Woman as a teenager and crossed her over with herself -- and has since been the subject of at least five stories attempting to establish just what her ever-more-complicated origin is. The fact that, following the Crisis, Wonder Woman was retroactively declared not to have been active in the early years of current continuity, while Donna was still supposed to have been a [[Teen Titans (Comic Book)|Teen Titan]] alongside the original Aqualad, Speedy, Robin and Kid Flash certainly didn't help.
** John Byrne introduced a fix, having WW's ''mother'' [[Time Travel]] back to the forties and become the "first" Wonder Woman, which helped... but he also introduced the "Dark Angel" concept, which [[Retcon|retconned]] Donna as a sort of cosmic [[Chew Toy]] repeatedly reincarnated into horrible fates, and sent her straight into [[Continuity Limbo]] for a few years. This all has earned Donna the nickname "Identity Crisis Lass" in some circles. Also "The continuity error who walks like a woman!" It was finally declared in ''52'' that Donna Troy was a symptom of the chaos caused by having multiple realities interacting with each other.
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* One word: [[Superboy]]. John Byrne's reboot of Superman caused ''all kinds'' of problems since, for one, his Superman was never Superboy. No Superboy to hang out in the 30th Century with the Legion of Super Heroes. Then you have all of the splintering of Superboy - clone, Superboy Prime, Pocket Universe Superboy... ''make it stop!''
* While not as extreme as some of the examples here, [[Green Arrow]] has had numerous minor, but confusing, problems since Oliver Queen came back from the dead.
** The problems began when novelist [[Brad Meltzer]] wrote a [[Green Arrow]] story called ''The Archer's Quest'' centering upon Oliver Queen going on a road trip with former sidekick Roy Harper to retrieve items that could be used to discover his secret identity. The problem with that is that Oliver Queen hadn't had a secret identity in years! In fact, in the ''Quiver'' storyline written by [[Kevin Smith (Creator)|Kevin Smith]] (which came out less than a year before Meltzer's story) the main piece of evidence Batman used to convince a resurrected and amnesiac Oliver Queen that he HAD been dead was newspaper articles which used his real name while discussing his death.
** Another problem was the revelation that the whole ''Archer's Quest'' was a ruse and that Ollie had really been trying to recover a photograph which proved that he had been present on the day his illegitimate son Connor Hawke was born and that Ollie, ipso facto, was a dead beat dad. The problem is that this scenario is completely implausible given the circumstances under which Ollie originally found out that Connor (who he had been traveling with for a while before his death) was his son - he had been told by the truth by his best buddy Hal Jordan, who was (at the time) nigh-omnipotent with the power of all The Guardians Of The Univers Minus One. For Meltzer's scenario to make sense, we have to believe that Hal Jordan is capable of being able to see the DNA of a person by looking at them but is unable to tell when his best friend is lying about having no idea he had an illegitimate son.
** [[It Got Worse]] several years down the line when [[Judd Winick]] [[Jossed]] a fan theory that sprang up to explain away the discrepancy. The idea was that Ollie knew about Connor and tried to do the honorable thing by proposing to Connor's mother but that she had (having always been portrayed as an independent, free-spirited hippie) rejected him because she didn't want to marry only because he felt guilty/didn't want to get tied down. Instead, Winick wrote a flashback scene where Connor's mom approached Ollie and was sarcastically wished good luck in trying to prove the baby was his in court. This scene apparently took place BEFORE the shipwrecking incident which inspired Ollie to become Green Arrow, as he tracks her down once he gets back to civilization and is there to have his photo taken with Connor before he has a fight with Sandra and walks out of her life again.
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* [[Ultimate Marvel]] has had a few problems with this where its version of [[Iron Man]] is concerned. The ''Ultimate Iron Man'' miniseries by [[Orson Scott Card]], while good on its own, is difficult to fit into continuity with the ''Ultimates'' series. Another origin story featured in an issue of ''Ultimate Marvel Team-Up'' created further problems. Although [[Brian Michael Bendis]], who wrote the latter story, has suggested that some of ''Ultimate Team-Up'' is [[Canon Dis Continuity|dubiously canon]], it remains to be seen how or if the former will be reconciled.
** The ''Ultimate Iron Man'' miniseries has recently been retconned to be a [[Work Within A Work|movie about Tony Stark's life]] that ignores the truth in favour of bizarre sci-fi.
** [[Ultimate Fantastic Four]] is the source of a few issues as well. In [[Ultimate Spider -Man]] and [[The Ultimates]] the Fantastic Four are referenced and Reed Richards is a notable enough scientist to have a building at ESU named after him, but very early on in Ultimate Fantastic Four, before the team comes together, there are references to The Ultimates.
*** This one happens because of a change in plans. Originally, the Fantastic Four we were seeing in Ultimate Spider-Man and the such were going to be adults, while Ultimate Fantastic Four would take place a decade or so in the rest of the line's past, establishing the FF as the first super heroes and cornerstones of heroic society in the Ultimate U. The plan got muddled and changed, but it's very apparent when Sue Storm, 16-ish in UFF, shows up during Ultimate Spider-Man's "Clone Saga" and is clearly in her late 20s/early 30s.
* ''The Crossing'', a [[Crisis Crossover]] featuring [[The Avengers]], is such a snarl that even [[Atop the Fourth Wall (Web Video)|Linkara]] refuses to review it, partly because it's nearly impossible to tell when it begins or ends. Basically, Iron Man turns evil and helps Kang try to take over the world, but who is on who's side changes from issue to issue. Eventually, Kurt Busiek rendered the whole thing moot in ''Avengers Forever'' by stating that the entire thing was Immortus trolling the superhero community so that they'd leave other planets alone, and that almost everyone involved was a Space Phantom. [[Let Us Never Speak of This Again|After the Heroes Reborn/Heroes Return debacle, the Crossing was pretty much never brought up again.]]
* Busiek also used ''Avengers Forever'' to untangle the very snarled continuity of [[The Vision]]. For decades, the Vision's origin story had him being created from the remains of the [[Ridiculously-Human Robots|original Human Torch]]. But after the writers of West Coast Avengers decided to re-introduce the Torch to modern continuity in the late 80s, the Vision's origin was retconned, invalidating alot of stories and raising alot of questions about where the Vision ''did'' come from. Enter Busiek, who [[Deus Ex Machina|explained everything]] by having Immortus use a time-altering [[MacGuffin]] to change history, so that two contradictory events; the Torch being rebuilt and the Torch not being rebuilt, ''both happened at the same time''. [[Your Head Asplode|Neat, huh?]]
* The Uncle Scrooge comics briefly endured this after Boom Studios acquired the license. The first eight issues under this publisher seemed to follow the comics' standard continuity -- and then the next eight tried to tie the series into the ''[[Duck TalesDuckTales]]'' TV show, which was only a loose adaptation with noticeable differences (in the comics, there was never a Launchpad, Donald didn't join the navy and Glomgold was an Afrikaner). As of issue #400, the comics seem to have returned to their original continuity, and a completely separate [[Duck TalesDuckTales]] title has since been released. So naturally this new series would feature a brief appearance by John Rockerduck, a Scrooge antagonist from the comics who never appeared in ''[[Duck TalesDuckTales]]''!
* The symbiotes from [[Spider -Man]]. First, the Venom suit was just an alien costume. Then it was retconned into being alive. Then, when the writers wanted to turn it into a villain, it was retconned that the suit made Spider-Man go insane and he had to get rid of it (originally, he was trying to destroy just because it was attatching itself to him, which is a bit harsh for a guy like Spidey). It was later shown the the suits fed off strong hosts as a sort of [[Social Darwinist]]. Then it was revealed to feed off negative emotions such as hate and anger. Then they were shown to live in the Negative Zone... no wait, there was a separate planet of them. Oh, and Toxin proved that not all of them are born evil after all. Oh, and Carnage has had about three symbiotes get destroyed but no one ever remembers those stories.
* As the Batman franchise was one of the few properties not completely rebooted during DC's ''[[New 52]]'' initiative, numerous continuity problems have arisen over the bits of Bat-history that were altered. A particular source of contention is how [[Batgirl 2000 (Comic Book)|Cassandra Cain]] and [[Batgirl 2009 (Comic Book)|Stephanie Brown]] could fit into the new, condensed five year timeline given some of the statements made in the new Batgirl title. Though it has been confirmed that Cain will appear in ''[[Grant Morrisons Batman|Batman Inc.]]'' at some point, how her history could be reconciled has not yet been mentioned.
 
 
== Film ==
* In the process of creating prequels for the ''[[X-Men (Filmfilm)|X-Men]]'' film series, different creative teams have introduced a number of discrepancies in the franchise - in fact, the only reason they're meant to be in the same continuity is the presence of [[Wolverine]] in all five films and the character of William Stryker. Almost all of the films have continuity snarls with other installments:
** Emma Frost is introduced as a woman in her late 20's/early 30's in ''[[X -Men: First Class (Film)|First Class]]'' (which takes place in 1962), but is seen as a teenager in ''[[X Men Origins: Wolverine (Film)|Origins]]'' (which chronologically happens 17 years later, during the Three Mile Island incident in 1979).
*** This isn't the only problem with ages; Cyclops is portrayed as a teenager in 1979 during Wolverine, but is portrayed as a man in his mid to late twenties in the original X-Men trilogy, which takes place 20 or so years later. James Marsden was 27 when he portrayed Cyclops in the original X-Men, about ten years too young.
** The process by which Wolverine received his adamantium claws changes from film to film. In ''[[X -Men 1 (Film)|X1]]'', dialogue and x-rays show that he had mechanical pistons and claws grafted into his arms. ''[[X 2X2: X -Men United (Film)|X 2 X Men United]]'' hints that the adamantium was injected and shaped by doctors, and (in a flashback) Logan is seen fighting off several doctors who've been working on him before escaping the Alkali Lake facility covered in blood. In ''Origins'', the adamantium bonding process is hands-free, no doctors ever work on Logan, and the adamantium is grafted to his bone claws, something he wasn't mentioned as having in the following films.
** Charles is paralyzed in ''[[X -Men: First Class (Film)|First Class]]'', but is seen as an older man walking around (with Magneto, no less) when they visit the young Jean Grey in ''[[X -Men: theThe Last Stand (Film)|The Last Stand]]'' and when he appears in ''Origins''. Hank McCoy becomes Beast in ''First Class'', but is shown on a television screen (in human form) in ''X2''. Cerebro was built by the CIA in ''First Class'', but was apparently built by Xavier and Magneto in ''X1''. The discovery of the mutant gene is new (and eventually leads to America and Russia uniting to kill mutants) in 1962 in ''First Class'', but Congress is surprised and shocked by the existence of mutants in the "present day" of ''X1'', which happens 40 years later.
** Also in ''Wolverine'', Sabertooth never had his memory erased and should know his own brother. In X1, which was released first, it seems that Sabertooth does not know Logan, looks completely different, and is near-mute.
** In ''First Class'', it is established that Mystique and Prof. X grew up together. Seems odd that she would be so casual about attempting to kill him in X1 and at no point did Charles express any real knowledge of her outside of being Mangeto's lackey.
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** Chewbacca apparently has no respect for Jedi in ''[[A New Hope]]'', despite fighting the Clone Wars alongside Yoda on his home planet in ''[[Revenge of the Sith]]''.
*** Chewie, unlike Han, is never seen to scoff at Obi-Wan's Jedi teachings, and since he doesn't actually speak in any way the audience can comprehend, we really have no indication what he thinks about Jedi.
** ''[[Revenge of the Sith]]'' reveals that it took roughly 20 years to build the Death Star (from the time Luke and Leia are born, a rough frame of the structure is being built) without anyone realizing it. In ''[[Return of the Jedi]]'', the Death Star II only takes 3-4 years to be fully functional and mostly-built. The [[Exactly What It Says Onon the Tin|apty-named]] novel "Death Star" tries to address this, going over numerous problems that came up over the course of its construction (including at least one instance of the superlaser having to be stripped out and redesigned). Death Star II, deaspite being a ludicrous 20 times larger than Death Star I, could be built much more quickly because by that point the Empire actually ''knew how to build a Death Star''.
** In ''[[A New Hope]]'', the Jedi had been gone for so long that some people (like Han Solo) no longer believe in the Force. When Obi-Wan whipped out a lightsaber, it was very shocking to the patrons in Mos Eisley. The Prequel Trilogy (ostensibly set twenty years before) has scores of Jedi walking around on several planets as a normal part of everyday political negotiations, with people not even batting an eye when witnessing Force powers or lightsabers.
** Obi-Wan and Yoda supposedly left Luke on Tatooine with the purpose of training him later. When that day came, Yoda acted surprised and even argued with Obi-Wan as to whether or not Luke should be trained. This could, however, be interpreted as Yoda just being unsure whether Luke is ''worthy'' of Jedi training, with the justifiable fear that he might end up like his father.
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*** Canonically, Obi-Wan died at 57 (only 5 years younger than Alec Guinness during filming). Anakin, on the other hand, was 46 (''26'' years below Sebastian Shaw!).
*** The [[Expanded Universe]] had, prior to the prequel trilogy, assumed that Obi-Wan had met and trained an adult Anakin, as nothing in the original trilogy even hinted at Jedi being brought in for training as young children. Thus, the EU soruces listed him as being only 5 years younger than Obi-Wan.
* [[Highlander (Franchise)|Highlander]] is one of the kings of this trope. Each of the original films screwed up the continuity more and more, and then the series was added in and then there are things like Search For Vengeance, and the Animated Series. This is another universe that will give you a headache if you try to figure it out.
* Minor by comparison to most of the other examples, but Tim Burton's ''[[Batman (Filmfilm)|Batman]]'' featured a black Harvey Dent, whereas when he was used as a character in the Joel Schumacher-directed sequels, he was depicted as white. Or at least, [[Two-Faced|half of him is white]].
 
 
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*** According to [[Peter David]], Lancelot was "the first Mary Sue." This certainly explains his (or rather his reincarnation's) treatment in Knight Life.
** And Morgan Le Fey went from being a benevolent sorceress who had saved Arthur's life on multiple occasions to a vindictive [[Yandere]] bent on breaking up Arthur/Guinevere to the mother of the [[Big Bad]] to the [[Big Bad]] herself. And even after Mordred was [[Retcon|retconned]] into being her son, he originally wasn't by Arthur. And then the whole [[Brother-Sister Incest]] thing got added in.
*** And along came [[Nasuverse|Kinoko Nasu]]. Isn't this a [[Fate /Zero (Literature)|twist of]] [[Fate/stay Stay Night (Visual Novel)night|Fate]]? Excuse the [[Incredibly Lame Pun]] there.
** Modern writers who try to keep things relatively sane while using many, many sources for Arthurian myth use this sequence: Gawain was one of Arthur's best friends, probably one of the first Knights of the Round Table, and by far the most [[Badass]] knight in Arthur's court - but he had a ''severe'' problem with losing his temper, and would end up losing to lesser knights in duels because he would get angry and clumsy, so Arthur never chose him to be his Second in Command; Lancelot was the Champion Arthur had been looking for to sit at his left hand, because he was more level-headed than Gawain and nearly as skilled - problem is, the guy was a little too interested in Guinevere, and we all know where that led; Galahad, the son of Lancelot, became Arthur's second and final Champion, who was basically as skilled as Gawain, and as level-headed and cunning as his father, making him the greatest knight to ever live - ''his'' only downside was that he was more loyal to his faith than to his king, and once the Grail showed up he and several other knights packed up and left to find it, though he did return later. Percival is considered the most noble of knights, and lived the code of chivalry to a "t," so only both he and Galahad received the Grail, but wasn't as strong as any of the other three knights, so he was never a "Champion." Mordred was never a "Champion," either; rather, he was a genius both in leadership and in battle, making him Arthur's favorite to succeed him, and so earned the seat at Arthur's right hand at the round table - but Arthur caught wind of Mordred's evil ambitions, and through any number of events (based on the author at the time), a schism formed between them (probably from Arthur's exiling of Mordred), and Arthur chose Sir Constantine to be his successor right before/during/after the Battle of Camlann. Yes, it takes this much space just to clarify 5 peoples' places in modern Arthurian myth. [[Continuity Snarl]] indeed...
** In the very earliest stratum [[One-Man Army|Cai]] was ''easily'' the foremost of Arthur's warband.
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== Literature ==
* Because he was constantly revising his unpublished works, [[JRRJ. TolkienR. (Creator)R. Tolkien|JRR Tolkien]] managed to create a [[Continuity Snarl]] ''all by himself'' (which is probably why they were unpublished). His son Christopher edited many of them together into ''[[The Silmarillion (Literature)|The Silmarillion]]'', trying his best to come up with a version that didn't contradict itself.
* The [[Land of Oz (Literature)|Land of Oz]] suffered from continuity problems from [[L. Frank Baum]]'s hands. This included whether they used money; whether they could die; and where Ozma came from.
** He managed to get a Continuity Snarl with two books. In the first book, the Scarecrow is [[Offered the Crown]] of the Emerald City; Glinda has the flying monkeys carry him back there so he can claim it. In the second book, when the Scarecrow goes back to Glinda for help regaining his crown, she tells him that he's not entitled to it, it's Ozma's.
* [[HPH.P. Lovecraft]]'s Cthulhu mythos. Lovecraft himself was not always very consistent with various details between his stories, and several of the other authors who continued his work had various contradicting views of the mythos, leading to much confusion for anybody trying to fit all the stories into a single continuity.<br /><br />Part of the reason behind that is that, at the time, Lovecraft had a very "pulp fiction" attitude towards his stories - not only did he have very little intent to create a cohesive continuity framework into which all of his stories could be inserted, but he tended to see each story as somewhat self-sufficient and exclusive. Mentioning the same occult book in multiple stories or inserting a reference to a character from another story was more a method to create the feeling of [[Cryptic Background Reference|artificial depth]] to the story at hand rather than trying to imply they all took place in a consistent universe. Lovecraft never really bothered to maintain continuity in his OWN stories, let alone all the stories written by his friends and associates that used shared references. <br /><br />Furthermore, Lovecraft aimed to create the feel of ancient myths by adding in deliberate inconsistencies, depending on what source the characters of a particular story gain their information. There's at least three different species as candidates for the title of the Great Old Ones, for example, as well as the more famous interpretation which Derleth embraced that the name refers to unique creatures of immense power.
* The [[Star Wars Expanded Universe]] is so large almost no fans have read even most of it. The lack of clarity on what is and isn't canon doesn't help either.
* [[Discworld]] suffers somewhat from this, but it is [[Justified Trope|explained in-universe]] as the results of Time shattering and having to be stitched back together by the [[Discworld (Literature)/Thief of Time|History Monks]]. '' Twice''. They only get away with it because of the extraordinary power of the human mind to deceive itself.
* In his later years, Kir Bulychyov admitted that he never reread any books in his ''[[Alice, Girl Fromfrom the Future|Adventures of Alyssa]]'' cycle, which would explain the many, many continuity problems that emerged over time. Krys, a recurring villain, had about three different (contradictory) origins and six different explanations of how his powers worked, his companion, Vesel'chak U, gained and lost powers, the chronology has been anything but consistent and don't even get started on when half of the novels were supposed to take place relative to each other. The fact that Kir Bulychyov died a few years ago doesn't help at all.
* Chris Roberson aims for this by intention--as a kid, he loved reading comic books and seeing all the ways they interconnected. Pretty much everything he writes that isn't a tie-in to ''[[Warhammer 40 K40000]]'' is in a single setting, but he explicitly uses the "many worlds" model of quantum mechanics, and [[For Want of a Nail|slight deviations lead to massive differences over a relatively short period of time]]. Attempting to fit his works into a single continuity would be arguably meaningless, and it's uncertain whether even he knows what he's doing half the time.
* An entire cottage industry has sprung up around trying to wrestle the Sherlock Holmes stories into continuity -- not only with each other, but with actual history.
** They [[Fan Nickname|call themselves]] the [[wikipedia:Baker Street Irregulars|Baker Street Irregulars]] after the street urchins Holmes often calls upon for help. Basically, their version of [[Star Trek (Franchise)|Trekkies]].
* The ''[[Sonic the Hedgehog]]'' mini-novels made by Michael Teitelbaum and Ron Zalme; the novels clearly take place in the [[Sonic theSat Hedgehog (TV)AM|SatAM]] universe, yet the Robotnik used in it is the one from ''[[Adventures of Sonic the Hedgehog]]''. How ''that'' fits into continuity is anyone's guess.
* About halfway through the first ''[[Bionicle]]'' book, ''Tale of the Toa'', the writer starts mentioning the tools of the Toa Nuva, and how the Toa use them. Yet they only turn into Toa Nuva at the end of the second novel. The confusion came about because the author, who wasn't well versed in the story and its characters to begin with, had to churn out the books real fast, all in 2003, which meant that besides that year's story, those of '01 and '02 also had to be written down. She thus accidentally mixed up the original Toa and their tools from the first year with their advanced Nuva forms from the second.
** A lot of scenes also differ in their presentation from the source material, like how the Toa received their Golden Masks, and the entire final battle with the Manas and Makuta, the latter of which ''didn't even occur'' in the book, despite being the [[Grand Finale]] of that year. Tons of scenes are written in a way that makes the book unwarrantable for a [[Compressed Adaptation]] title (as in, the left-out events simply cannot be spliced in between the chapters). These could be forgiven, were the book meant to be a simple adaptation, or a "new take" on the story, but it was supposedly intended to be part of the official timeline.
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== Live-Action TV ==
* Countless ''[[Doctor Who]]'' fans learnt to shudder when the topic of what exact decade(s) the UNIT stories were set in is raised, before the new series demonstrated how much worse it could get. Precisely when the UNIT stories were set may be unclear, but at least we know which order they took place in. With the new series and [[Spin-Off|spin offs]], we don't even know that. There are sound arguments that ''[[The Sarah Jane Adventures|Revenge of the Slitheen]]'' happened after "Smith and Jones", and equally sound arguments it happened first.
** The Eighth Doctor's continuity doesn't even try to make sense simultaneously. The only definitively canon story is [[Doctor Who/TVM the TV Movie/Recap|the telemovie]], for [[Eighth Doctor Adventures|the novels]], [[Big Finish Doctor Who|audios]] and [[Doctor Who Magazine (Magazine)|comics]] made it clear early on that they're not concerned with outright contradicting each other for the sake of telling their own stories.
** There's the Cybersnarl created by the incompetent attempts to tie "[[Doctor Who/Recap/S22 E1 Attack of the Cybermen|Attack of the Cybermen]]" in with "[[Doctor Who/Recap/S4 E2 The Tenth Planet|The Tenth Planet]]", "[[Doctor Who/Recap/S5 E1 The Tomb of the Cybermen|The Tomb of the Cybermen]]" '''and''' "[[Doctor Who/Recap/S6 E3 The Invasion|The Invasion]]".
** These are by no means the only fraught areas of Doctor Who continuity. In what order did the original series' Dalek stories happen? (In particular, when does ''The Daleks'' take place and why are the Daleks in that story so different from all others seen later?) How many Doctors have there been (watch ''The Brain of Morbius'', although the novelisation clears it up a bit)? What was Atlantis like, and how did it sink? And how many ''times'' did it sink (And yes, this question ''is'' more complicated than it first appears)? How do Time Lord family relationships - in particular, the Doctor's - work? What are the Laws of Time and for that matter, are they laws in the scientific or legal sense? And most of that list arises just from the TV series.
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**** Another possible theory which is occasionall kicked around in the fandom is that since we know, due to classic-era episodes like [[Doctor Who/Recap/S7 E4 Inferno|Inferno]] plus the events in various new-era Series 2 episodes, that the TARDIS ''can'' slip "sideways in time" into alternate-history universes, it's entirely possible that the TARDIS has been doing so all along without the Doctor realizing it.
** In the immortal words of a leading who-fan: "Continuity? What continuity?"
* As mentioned above, [[Star Trek (Franchise)|Star Trek]] also suffers from this, despite efforts from the writers to avoid this.
** A particularly embarrassing debate is the question of why Klingons look completely different in [[Star Trek: theThe Original Series (TV)|the original series]] to the rest. It was [[Lampshaded]] in one [[Deep Space Nine]] episode, but deliberately wasn't explained (the [[Deep Space Nine]] writers [[Word of God|stated]] they realised any explanation, especially a virus-based one (which they had considered but abandoned) would be underwhelming, forced and ridiculous so decided to acknowledge it in a humorous way but not insult the fanbase with a horrible technobabble solution). ''[[Star Trek: Enterprise (TV)|Enterprise]]'' decided to create an explanation regardless. {{spoiler|The TOS Klingons are the descendants of several Klingon colonies that got infected by a virus that caused a genetic mutation that made them look more human. Said virus was created by a Klingon scientist hoping to enhance Klingon soldiers using DNA from genetically engineered humans, after said genetically engineered humans 1) kicked their asses, 2) stole one of their ships, and 3) flew circles around the Earth Starfleet's flagship.}} Apparently, reconstructive surgery in the ''Enterprise'' episode suggests that individual gene therapy became possible between TOS and ''Deep Space Nine'', thus explaining Kang, Kor, and Koloth's sudden appearances of ridges in the latter. And yes, the whole story is every bit as trite as the [[Star Trek: Deep Space Nine|DS9]] writers had feared.
** The change in their MO from "The Russians <small>IN SPACE!</small>" to [[Proud Warrior Race Guy|Proud Warrior Race Guys]] is hinted at in one recently-affected Klingon mentioning having felt fear for the first time since childhood. Apparently they got more underhanded because their personalities were also altered to be more human.
** In the prequel comic to ''[[Star Trek (Filmfilm)|Star Trek]]'' (2009), ''Star Trek: Countdown'', it's stated that Nero's crew ritualistically disfigured themselves as a demonstration of mourning for their lost homeworld. You can see in the very first scene with Nero that he has both pointed ears intact, while later in the movie one ear has had the point cut off. The same scene also has much more prominent brow ridges on Nero's face than later in the movie, so it's likely that distorting their ridges was another part of the mourning, along with the tattoos.
** Furthermore, the tattoos sported by Nero's crew are given an explanation: Romulan tradition states that when a family member passes away, they apply dyes to their skins, and mourn. When the patterns fade, they move on with their lives. Nero's crew tattooed the symbols onto their bodies, so that they would never move on from the loss of Romulus.
** And then there's the Eugenics Wars. In the 1967 episode "Space Seed", it's established that the Earth was devastated in [[Twenty Minutes Into the Future|the 1990s]] by an epic war fought against [[Beware the Superman|genetically-engineered supermen]]. Trouble is, ''Star Trek'' was still going strong by the time the actual '90s rolled around. And some episodes made in that time and afterwards seem to suggest that the '90s happened like they did in [[Real Life]]. But the Eugenics Wars are still [[Canon]] and an important part of ''Star Trek'''s [[Backstory]] as it's the origin of [[Star Trek II: theThe Wrath of Khan (Film)|Khan]]. This has never really been officially resolved, although author Greg Cox wrote a series ''Star Trek'' novels covering the Eugenics Wars, depicting them as happening in secret and trying to match it all up with real history.
** Vulcan telepathy is treated differently by [[Star Trek: Enterprise]] compared to the other series. Despite other series having established it was a common accepted part of Vulcan society for thousands of years (TNG's "Gambit" establishes it's been part of Vulcan society for well over 2,000 years), in "Enterprise" it's considered much rarer, much more stigmatised, to the point where the mind-meld is commonly believed to be only possible by a very few. This contrasts to other series' having Vulcans being very aware of their own wide-spread telepathic history to the point where they knew it was being used in psionic battles before Surak's reformations and pieces of psionic resonators were established museum items.
* ''[[The Big Bang Theory]]'': In the season 1 episode "The Hamburger Prostulate" mentions that Sheldon is allergic to cats, but later episodes mention that he had a cat when he was a kid. "The Plimpton Stimulation" even states that getting a pet was against the "Roommate Agreement" unless it was necessary, like a Seeing Eye Dog.
** Possibly lampshaded in "The Zazzy Substitution" (Season 4, Ep 3) where Sheldon reacts to his breakup with Amy by getting a cat ... then several more. 25 in all.
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** A few episodes later in Season 3, Hawkeye says he's been in Korea for two years. If he got there when the war broke out in June of 1950, which doesn't seem likely since he was drafted, that would make it some time in 1952 at the earliest.
* In ''[[The Suite Life of Zack and Cody]]'', Maddie asks London's help to pass gym when she realizes that, despite her [[Rich Bitch|pampered lifestyle]], the rich girl is in great shape. In the sequel show, Suite Life On Deck, London suddenly needs Zack's help to pass gym.
* ''[[I CarlyICarly]]'', Zoey101 and [[Victorious]] share [[The Verse|a universe]]. [[Drake and Josh]] is a piece of [[Recursive Canon]] in that universe, and has Drake Bell the actor (not Drake Parker the character), show up in Zoey 101. Then in ''iStart A Fan War'', an episode of ''[[I CarlyICarly]]'', they include a cameo by a pair of [[Drake and Josh]] characters. One episode even has Carly and Spencer watching an episode of [[Drake and Josh]].
** There is a solution.. possibly. See [[Dan Schneider]] for info. In short, there is a [[Show Within a Show]] that could be what the characters are referring to and ''not'' [[Drake and Josh]]''.
*** That solution is then torn apart by the [[Victorious]] episode ''Who Did It To Trina'', where they explicitly state that [[Drake and Josh]] is a TV show. Even though the episode before it had Helen, one of the main characters ''from'' [[Drake and Josh]] appear and reference characters from [[Drake and Josh]].
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* ''[[Kamen Rider OOO]]'''s [[Early-Bird Cameo|appearance]] in ''[[Kamen Rider Double]]'''s movie and their crossover movie Movie War Core has... issues with the TV series continuity. Whilst this would not be a problem for Kamen Rider traditionally (what with each Heisei Rider series being self-contained pre-[[Kamen Rider Decade]]) the fact that Double's canon is very tight creates these problems. Examples include Gotou becoming Birth (his ''not'' getting to be Birth is a major part of his character arc) and OOO's medal count (he switches between forms he never had all the medals for at the same time at any point in the series.)
** And Giru ''existing.'' In the series, Giru is {{spoiler|never active. A complete set of ten Core Medals for a dinosaur Greeed exists, and five wind up in Eiji and five wind up in Maki.}} Also, there were [[Out-of-Character Moment|Out Of Character Moments]] with the OOO crew, as all the details of the series hadn't been finalized when the movie was produced. This results in a movie that is clearly a direct continuation of Double but just as clearly ''can't'' be in continuity for OOO.
* There have been three seasons of ''[[Power Rangers]]'' that have shown variations on the future: ''[[Power Rangers SPD]]'' (2025), ''[[Power Rangers Time Force]]'' (3000), and ''[[Power Rangers RPM]]'' (late 21st century at the earliest). Trying to fit them together can be problematic, especially since the various showrunners are unclear on whether or not RPM is an [[Alternate Continuity]] (although Venjix's apocalypse would explain the wastelands outside the Time-Force-governed utopia). However, there will be an inevitable [[Canon Welding]], since everything is going to be forced together if they adapt ''[[Kaizoku Sentai Gokaiger (TV)|Kaizoku Sentai Gokaiger]]''. (Of course, it's not too hard to weld together the three seasons even without ''Gokaiger.'' The biggest bone of contention about ''SPD'' revolves around the amount of aliens living on Earth which had disappeared before the chronologically later seasons. It's not a huge stretch to assume that by the time of ''RPM'' and ''Time Force,'' the aliens have become [[Human Aliens]] by either adapting to Earth's atmosphere or integrating with humans.)
** The ''[[Power Rangers Samurai]]'' team-up "Clash of the Red Rangers" offically shoved ''RPM'' into an [[Alternate Continuity]] by saying ''RPM'' took place in another dimension. However, doing that creates other continuity problems, namely in one episode Tenaya is seen picking up an ''Operation Overdrive'' helmet, which means you would have to shove ''Overdrive'' in with ''RPM,'' which creates other huge problems thanks to "Once a Ranger."
** In "Alpha's Magical Christmas", a direct-to-video musical released during the second season of ''[[Mighty Morphin Power Rangers]]'' has many continuity errors such as the team already being acquainted with Rocky, Adam and Aisha, even though Tommy is still wearing his Green Ranger costume and not the White Ranger one, while Jason, Zack and Trini are "[[Put Onon a Bus|at the Peace Conference]]", even though they're still Rangers.
* Frasier Crane famously told his friends at ''Cheers'' that his father was a research scientist and had died years before. This was Handwaved in his [[Spin-Off]] series ''Frasier'' as having been something he said because he was angry at his dad that day, but it was in fact not something that was said once; his characterizations of his father and his identifying himself as an orphan took place consistently over quite some time during his years in Boston.
 
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== Professional Wrestling ==
* The [[WWE (Wrestling)|WWE]]'s "[[Kane (Wrestlingwrestling)|Kane]]" character, whose official life story has him having been a hopelessly-insane burn victim in an asylum at the same time he was supposed to have been hanging out in college and going to parties with his sweetheart Katie. Further complicated by the storyline of his "[[The Undertaker|brother]]", who had a whole angle where he [[Breaking the Fourth Wall|Broke the Fourth Wall]] and "went out of character". The whole thing got so complicated that they had to have somebody write a book (titled ''Journey Into Darkness'' if one should want to look it up) in an attempt to explain it.
** [[The Undertaker]] himself tends to be mildly rebooted when he gets a gimmick change. Different personas don't often directly reference older ones, but this is a double-edged sword; most glaring is when the American Badass started out with the Undertaker doing a worked shoot to sell the idea that he wasn't supernatural ''in'' character as well as out, so he could come back as a leather-clad biker, only for Kane to ''kill him'' so he could be ''resurrected as undead.''
** Occasionally a reference is made to their childhood home burning down, but which brother is responsible depends on who's Heel and who's Face at the time. If they're both Face, it was <s>an accident</s> [[Paul Bearer]]'s fault.
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== Video Games ==
* A very jarring example is ''[[Marathon (Video Game)Trilogy|Marathon]] Infinity: Blood Tides of Lh'owon''. In the end of the second game, the Pfhor, an alien slaver race, rather than facing defeat, decide to destroy Lh'owon instead of letting the humans have time to evacuate. Their method is using a weapon that even the most powerful known force in the galaxy is afraid of. It basically causes the sun to go nova early. As Durandal points out in the last terminal, there's an old S'pht (Native race that the Pfhor enslaved) myth that the sun has a god in it capable of destroying the universe, but that doesn't matter much, as the Pfhor army and navy occupying the planet are destroyed. Cue ''Marathon Infinity'', where almost none of the events summed up in the final screen of ''Marathon 2'', such as the ultimate destruction of the Pfhor, disappearance of Durandal, and evacuation of Lh'owon happened. In fact, the only thing that is even referenced is the final terminal. The god turns out to be an [[Eldritch Abomination]], and the player has to find a way to stop him from being released.
** It should be noted that the continuity snarl of Infinity was deliberate. {{spoiler|The player is actually jumping between a series of alternate timelines, attempting to find one in which he can successfully contain said Eldritch Abomination.}}
* While the individual ''[[Klonoa (Video Game)|Klonoa]]'' games have decent plotlines, the inter-game continuity gets rather ridiculous. In ''Door to Phantomile'', [[Platforming Pocket Pal|Huepow]] {{spoiler|is revealed to be the prince of the Moon Kingdom using the Ring Spirit form as a disguise}}, ''and'' {{spoiler|is tragically separated from Klonoa at the end of the game}}, both of which are ignored when he reappears in later games. Not only does Joka have a different personality in every game he appears in, but he already knows Klonoa in half of them, and is killed in the other half. And Chipple, a random villager from ''Empire of Dreams'', showed up in ''Dream Champ Tournament'', where he had become Klonoa's close friend... and ''a kangaroo''.
** Obvious explanation: the games are all [[Alternate Universe|Alternate Universes]] to each other.
*** With the obvious exceptions of ''Door to Phantomile'' and ''Lunatea's Veil'', which take place in the same universe.
*** It's possible the intro to ''Lunatea's Veil'' is an attempt to [[Hand Wave]] this, since {{spoiler|Klonoa's memories of Huepow were all fake anyway, retaining them would be rather pointless.}}
* ''[[The Legend of Zelda (Franchise)|The Legend of Zelda]]'' continuity is inherently very confusing for the simple reason that for a long time, we didn't have the whole picture, and, of the bits and pieces we do get, we aren't told how they fit together, or how many wholes they comprise, leading to literally decades of debate as to how to organize our snapshots into Hyrulean History. Things were finally sorted out in late 2011 with the revelation of the official timeline<ref> which, among other things, revealed that things split into THREE timelines, not two as was previously thought, explaining why it was so darn difficult to figure out what went where</ref>, but the confusion ''will'' [[As Long Asas There Is Evil|live anew each and every time a new game is released]].
* ''[[Mortal Kombat]]''. Each character gets his/her own ending, they often intersect, with other character's endings, and are often in direct conflict with other character's endings, showing one character winning a battle in his own ending, but being killed in the same battle by his opponent in his opponent's endings. Background information in the next game says which endings are canon, and which aren't. The official word on the ''[[Mortal Kombat Deception (Video Game)|Mortal Kombat Deception]]'' endings are [[All There in the Manual|only on Armageddon's website]]: Basically, [[Unwitting Pawn|Shujinko]] and [[Magical Native American|Nightwolf]]'s endings worked together to end [[Big Bad|Onaga]]. For the ''[[Mortal Kombat Armageddon (Video Game)|Mortal Kombat Armageddon]]'' endings, replace "Background information in the next game" with "Opening cutscene in [[Mortal Kombat 9 (Video Game)|the next game]]": Basically, either the backfiring of Taven's plan to [[Kill'Em All]] empowering everyone instead allowed Shao Kahn to win, or Kahn just flat out won on his own through his sheer power.
** There are more straight examples of snarls in the actual story, mostly the result of the lead writer shift after ''MK4'' . The two which stand out the most are Scorpion's oath to protect Sub-Zero (started in his ''MK2'' ending, supported in the official comic and ''UMK3'' ending, then ignored completely in ''MK4'', with following games being ambiguous about the whole ordeal, or portraying him as an [[Ax Crazy]] [[Roaring Rampage of Revenge|revenge-seeker]]), and Kintaro's fate after ''MK2'' (with 3 different sources, all of debatable canonicity, stating different and contradicting fates for the Shokan).
** Another big snarl is that at the end of ''[[Mortal Kombat 2 (Video Game)|MK2]]'', Shao Kahn is [[Killed Off for Real]], but in ''3'' he returns alive and well to take over the world.
* Fallout 3's last DLC was Mothership Zeta. Shortly after it's release, anybody who enjoyed the old game fluff immediately shouted BS. The whole DLC is based on an encounter from Fallout 1, one that is widely considered non-canon because of it's humorous tone. And later, it's hinted {{spoiler|the aliens started the great war}}, which completely ignores various other, more serious, explanations for the war. Not to mention the DLC was very linear, which contrasted with the more open environments of Point Lookout and Broken Steel. Aliens were never confirmed canonically. They were hinted at, and used as jokes, but never confirmed. The closest we get is the American supercomputer from before stating it was based on alien technology, and saying it may be lying through it's teeth the very next second.
* ''Skullgirls'' may count, though that the creators said that each ending is canon in some way. Still confusing, though.
* ''[[Street Fighter]]''. ''Street Fighter'', ''Street Fighter'', '''''[[Rule of Three|Street Fighter]]'''''. In fairness, a lot of it is because 2 become an iconic landmark revolutionary sea-changing event of events which changed the universe forever and ever (to the point where pretty much everyone [[Capcom Sequel Stagnation|got plain sick of it]]). If this weren't the case, Capcom ''probably'' would've just relished their success and quietly released Alpha as a fun, inconsequential one-off featuring the unselectable fighters in [[Street Fighter (Videovideo Gamegame)|the first game]], then made a full break with ''[[Street Fighter III (Video Game)|III]]''. As it is, ''[[Street Fighter II (Video Game)|II]]'' and its continuity has reach such an enormous Shuma-Gorathian level that it's ''dragged the rest of the ''Street Fighter'' universe into it''. Hence, ''[[Street Fighter IV (Video Game)|Street Fighter IV]]''. With Makoto, Dudley, and Ibuki (and now Yun and Yang) at the same age and with the same motivations as in a game that canonically isn't supposed to happen for at least another three years. With a hopelessly convoluted plot involving M. Bison (who ''does'' die for real at some point, we just don't know ''when'') and a Korean hellion we've never even heard about before. With Adon seemingly stuck in the distant past. With Rose around for no apparent reason. Before, there would be retcons; now, Capcom [[They Just Didn't Care|isn't even trying to hash it out anymore]].
** Capcom plays so fast and loose with continuity that now we have [[Capcom Fighting Evolution (Video Game)|Ingrid]], a character who [[Clock Roaches|deals with continuity snarls]]. [[Cryptic Background Reference|Maybe]]. Between having few appearances and Capcom's refusal to ever clear anything up, she's more likely to turn into a snarl herself.
* ''[[Myst]]'' created an interesting continuity snarl when it [[Retcon|retconned]] the prison books of ''Myst I'' and ''Riven'' into actual ages. That is, the books themselves were not intrinsically special or different from other linking books. ''Myst IV'' goes into great detail as to what the Red and Blue ages (named Spire and Haven) are like. While this works for ''Myst I'', it violates the events as they unfold in ''Riven''. To beat ''Riven'', you have to trap Ghen in a prison book. This book was presented as a special "one man prison" book, which is a very important plot point. Ghen's no fool; he isn't going to go into any random book some guy brings him. To ensure it's safe, he asks ''you'' to go through the book first. This works out in the end because it is a ''one man'' prison; when he comes through the book after you, you are freed and he is trapped. If that book were a regular linking book, you'd be trapped with a very pissed-off Ghen... who had the sense to bring a gun.
** This can best be resolved if Atrus made the Red and Blue Trap books ''out of'' Linking Books to Spire and Haven, altering their text to trap users in the conduit between worlds. At the end of ''[[Myst]]'', he could've simply ''repaired'' those alterations, shunting his sons onward into their respective Ages for safekeeping. The book that traps Gehn could've been a similar device, with its window adjusted so it wouldn't show the Stranger in the conduit, as the Red and Blue books had shown the brothers. Apart from minor references in the Spire and Haven journals, which could be attributed to deception or simple error by two stir-crazy captives, this resolves everything about the Trap Book/Prison Age quandry.
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** [[Word of God|The official version]] is that that the "[[Literary Agent Hypothesis|real]]" Stranger talked his ([[AFGNCAAP|or her]]) way out of it, which the player [[Heroic Mime|can't really do]].
** It isn't the only retcon in the game's canon that poses problems for ''Myst''. When the official rules for linking books were more clearly established, they included the fact that sound doesn't travel through a linking panel. This means that the stranger couldn't have talked to Sirrus and Achenar, regardless of whether they were in prison books or prison ages, nor could he have talked to {{spoiler|Atrus through the linking book to D'ni at the end of Myst}}. This is compounded by the fact that Sirrus, Achenar and {{spoiler|Atrus}} definitely shouldn't have been able to see the stranger, as although the linking panel lets you see an Age, you clearly can't see back through a linking panel even inside Myst ({{spoiler|including the D'ni book, since when you get to D'ni you can't see back into the library, so how did Atrus see the stranger?}}).
* ''[[Mega Man X (Video Game)|Mega Man X]]'' was supposed to end after ''X5'', but didn't, leaving a complicated mess of the continuity of its series. Maybe it's just because some of those games [[Fanon Discontinuity|don't exist]] for some people.
** It's really not that complicated: After ''X5'', two timelines were created. One continues to ''X6'', ''X7'', ''Command Mission'', and ''X8''. The other continues to the ''[[Mega Man Zero (Video Game)|Zero]]'' series, and proceeds beyond that to the ''[[Mega Man ZX (Video Game)|ZX]]'' series.
** ''[[Did Not Do the Research|Except]]'' for that [[Word of God]] states that the Jakob Elevator from ''X8'' eventually becomes Neo Arcadia from the ''Zero'' series, and Zero's ending in ''X6'' {{spoiler|where he [[Sealed Good in Aa Can|seals himself away]] in order to remove a component of his body dealing with [[The Virus]]}} is the last event in the ''X'' timeline before the Elf Wars and ''Zero''. While [[Executive Meddling]] ''did'' cause Keiji Inafune to rework his ideas for the ''Zero'' series, it's made ''blatantly'' clear that [[Post Script Season|the following games are indeed canon]], whether some people like it or not.
* Each installment of ''[[The Elder Scrolls]]'' is made by a different team, and each has a very large amount of information in each game. Later teams have been known to completely overwrite what was established by earlier teams. Every single installment has a portion of the fanbase that declares "[[They Changed It, Now It Sucks]]".
** [[The Elder Scrolls]] series even has an in-universe continuity snarl: the Warp in the West. Somehow, ''all'' of the contradictory endings of ''Daggerfall'' are true.
* ''[[Touhou Project]]'': Did the first five games happen, or are they a separate continuity altogether? Are the PC-98 versions of Reimu and Marisa the same characters as the Windows versions? What exactly is Alice's backstory? [[Demoted to Extra|And where in the world is]] [[Brother Chuck|Mima?]]
** Those specific examples are only a problem if you assume the PC-98 games are still in continuity. Though the Windows games have a number of minor details that appear to contradict each other.
* The Blaze/Silver/Nega issue in the ''[[Sonic the Hedgehog]]'' series. In ''[[Sonic Rush Series (Video Game)|Sonic Rush Series]]'', Blaze is from an alternate dimension. In ''[[Sonic the Hedgehog 2006 (Videovideo Gamegame)|Sonic '06]]'' she is from the future (and seems out of character). Additionally, due to that fact she was from the future, she could be REAL version of Blaze, who isn't born until later. The other one DID come from an alternate universe...
** Later on, in the DS version of ''[[Sonic Colors (Video Game)|Colors]]'' (which may or may not be canon), Blaze appears alongside Silver during the third mission on Sweet Mountain with hints that these two have worked together in the past, making this most likely the '''06'' Blaze (who was Silver's best friend).
** And ''then'' there is ''[[Sonic Generations (Video Game)|Generations]]''. Blaze is first seen at Sonic's birthday party interacting with Cream and her in-game character profile notes that she's from another dimension, indicating that this is the same Blaze from ''Rush''. As a [[Continuity Nod]] ([[Reset Button|of sorts]]) to '''06'', Blaze is found in Crisis City. Here's where things get wonky. After Sonic completes the Crisis City Act 2 mission "Blaze: Piercing the Flames", Blaze will remark, "I never thought I'd find myself in Crisis City again," bringing up the question of ''how'' exactly Blaze knew of a place that '''a)''' another version of herself visited and '''b)''' existed in a timeline that was ''erased from history''.
*** It was NEVER stated that the Rush and Sonic 2006 Blazes are alternate universe versions of the character, that was merely a fan theory. Not that this makes things any less confusing.
** Additionally, both Silver and Eggman Nega (characters with prominent ties to Blaze, but connected to her by different games) are drawn into this snarl as well, as the two appear in the ''Rivals'' series--''sans'' Blaze. Here, Silver is still from the future, but Nega (established in ''Rush'' as Eggman's parallel self from the same dimension Blaze is from) is now a ''descendant'' of Eggman, embittered by how Eggman's failures have tarnished the family name in the future and is now an ''enemy'' of Eggman instead of working with him. Later on, Nega reappears in ''Rush Adventure'' and ''Rivals 2'' with the conflicting backstories of his appearances between ''Rush'' and ''Rivals''. It's implied that (due to '''06'' slamming down on the [[Reset Button]] until it ''cracked'') Silver now hails from the ''Rivals'' future and Blaze is from ''Rush'' (with no official word on Nega with his lack of appearances since), but Silver is still the Rival Battle for the Modern era of ''Generations'' (which takes place in Crisis City, no less) and {{spoiler|the ending of ''Generations'' has him and Blaze briefly chatting it up before everyone says their goodbyes to Classic Sonic and Tails.}}
* The [[Nintendo DS]] [[Updated Rerelease]] of ''[[Ace Attorney (Visual Novel)|Phoenix Wright: Ace Attorney]]'' featured an extra, fifth case which takes place in between ''Ace Attorney'' and ''Justice For All'' {{spoiler|as evidenced by Maya still being away at Kurain Villiage training}} wherein Phoenix and Edgeworth work together to assist Ema and Lana Skye in their legal case. However, when Edgeworth reappears in Justice For All's fourth and final case, Phoenix claims not to have seen him since {{spoiler|the fourth case of Ace Attorney where Miles was accused of murder}} and Edgeworth supports this by claiming to have left the country right after said events; neither of them seeming to remember their work together on the Skye trial. This could simply be explained away as a case of [[Canon Dis Continuity]] by stating that the fifth case of Ace Attorney never really happened in the series proper, due to it being an addition for the remake. But, Ema is integrated with the official continuity in [[Fan Nickname|the Apollo Justice arc]] by having her appear and explain Wright's involvement with her sister's case, thus making Phoenix's and Edgeworth's reactions to each other in Justice for All seem odd in retrospect.
** It's quite easy to make it fit in canon if you ignore the one part where Phoenix says he has not seen him since {{spoiler|Miles' trial}} and just consider that they were really referring to case 5 of the first game rather than case 4 (case 5 actually does somewhat set up Miles' disappearance). This problem was basically made due to bad porting. If they changed the background in Phoenix's little "Haven't seen him since" monologue, this whole problem would have never existed.
** What's really weird is, because of the order the games were released in overseas, the translations had every chance to fix this and write it so that no one would notice the problem, and they... didn't.
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* The Halo universe can't make up its mind on whether there was a single "[[Child Soldiers|class]]" of [[Super Soldier|Spartan-IIs]] or more. Summed up at [http://xbox.answers.wikia.com/wiki/Was_there_a_second_class_of_Spartan-IIs this Wikia Wikianswers page]. This relates to the question of [[Writers Cannot Do Math|how many Spartans there were]].
** As the series continues and more extended universe books are printed, this is steadily getting worse, most egregiously with the background of the Flood, the Battle of Reach and the events leading up to it, and Humanity's relation with the Forerunners- is Humanity {{spoiler|the direct descendants and same species as the Forerunner, a completely separate species picked by the Forerunners to pick up where they left off after the Flood, or a separate galactic empire that the Forerunners beat and de-evolved? Depending on the source, [[Mind Screw|Yes.]]}}
* The first ''[[Street Fighter Alpha (Video Game)|Street Fighter Alpha]]'' basically treated the SNES ''[[Final Fight]]'' sequel, ''Final Fight 2'', as if it never happened. They did so by introducing Zeku as Guy's Bushin Ryu predecessor, ignoring the fact that Genryusai from ''Final Fight 2'' was precisely introduced to fill that role. The ''Alpha'' series continued with no reference to Genryusai's existence until Maki, Genryusai's daughter and a fellow Bushin apprentice, was introduced to the portable versions of ''Alpha 3'', where she was Zeku's other student. The developers didn't bother to explain where Genryusai fits in within the Bushin Ryu hierarchy, but some fans have [[Fan Wank|postulated the idea]] that Zeku was actually Genryusai's student.
* While early Pokémon games' differences between "Generation" versions are mostly aesthetic, later years significantly change the plot and in ''[[Pokémon Ruby and Sapphire (Video Game)|Pokémon Ruby and Sapphire]]'''s case, who the main antagonist is. Then there's whether the pre-Game Boy Advance era games are canon, or if only the [[Video Game Remake|remakes]] are.
** Continuity in Pokemon games is usually thought of as being based on how the Pokémon themselves are traded from game to game, but this can get a bit confusing when you factor in [[Pokémon Colosseum]] and its sequel, ''[[Pokémon Colosseum|Pokémon XD]]''. The later takes place five years after the former, but both games are only compatible with the GBA games, which are assumed to take place at the same time. The DS games (The Sinnoh-based games and Johto-based remakes) take place four years after the GBA games (The Hoenn-based games and Kanto-based remakes).
* The [[Nasuverse]] has an interesting approach to continuity snarls.
** The first comes into place with Kagetsu Tohya, a sequel for [[Tsukihime]]. Kagetsu Tohya takes place in a dream world where the continuity is heavily blended and mutually conflicting events all take place together. For example, whether or not Akiha goes to Shiki's school depends on what he is thinking that morning. However, it should be impossible for this to be possible at all because the story is based around Len, and there is no route in Tsukihime where Shiki meets Len (Arcueid's familiar at the time) while Akiha goes to school with him. The continuity snarl occasionally confuses Shiki as well, but he's prevented from really thinking about it by Len.
** An equally weird example makes up the plot of ''[[Fate Hollow Ataraxia (Visual Novel)|Fate/hollow ataraxia]]'', which blends the timeline for [[Fate Stay Night (Visual Novel)|Fate/stay night]]. See, the nature of FSN means that almost the entire cast ''has'' to be killed off before the end, but they're all okay again in FHA. Characters who died in all three routes are back. {{spoiler|The reason for this is because Tohsaka accidentally merged a large number of continuities together, both ones we saw and ones we did not. Thus while Lancer was always killed, there was a continuity somewhere where he didn't. Like the above example, dream worlds come into it somehow, but since it hasn't been fully translated it's not quite clear how it works out exactly.}}
** Finally, Ryougi Shiki appears in ''[[Melty Blood (Video Game)|Melty Blood]]'' despite word of god stating that she and Tohno Shiki do not share a universe because the odds of two people having the Mystis Eyes of Death Perception at any given time make it impossible. Nobody seems to have had the eyes for several thousand years, meaning the odds of having them manifest are at probably trillions to one. ''[[Melty Blood (Video Game)|Melty Blood]]'' has other issues than this, however. Satsuki is alive and a vampire, Arcueid is still around but not all yandere-y, Kohaku's route appears to have been partially resolved, Vermillion Akiha etc.
*** At least in Ryougi's case, she is explicitly stated to come from a different universe, as ''[[Kara noKarano Kyoukai (Literature)|Kara no Kyoukai]]'' is set in an alternate reality from ''[[Tsukihime]]'' and ''[[Fate/stay Stay Nightnight]]''.
* ''[[Okami (Video Game)Ōkami|Okami]]'' may only be a 2-game series, but it has one thing it can't agree with itself on. ''[[Okamiden (Video Game)Ōkamiden|Okamiden]]'' introduces a Akuro, who is the [[Big Bad]] of the game. Now, dialogue when he's introduced heavily implies that he is the successor of the previous game's [[Big Bad]], Yami. But later, the Knowing Jewel claims that he merely used Yami as a vessel. Keep in mind that Akuro didn't exist in the first game, and that both of these versions of what Akuro is come from the ''same game!'' Jeez!
 
 
== Webcomics ==
* ''[[Drow TalesDrowtales]]''' rolling [[Retcon]] (repeatedly sequentially updating older chapters with new art and story) causes chaos for many fans' understanding of the comic's backstory, and there are ongoing debates on the forums as to what formerly canon information is current canon and what isn't.
* ''[[The Order of the Stick (Webcomic)|Order of the Stick]]'' parodies this trope with an actual entity called [[Trope Namer|The Snarl]]; created when multiple Gods tried to create the universe and had disagreements about how things worked.
 
 
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** A partial answer now exists: You need to be able to gather the energies of Magic in some way to take the courses in Magic (and it's explicitly noted that there are (inefficient) ways a normal human can do so).
*** But that still doesn't really work - in ''There's an Angel in Dickenson Cottage'' Lodgerman explicitly tells Kerry that her brother can't come to Whateley despite his enormous magical potential because Whateley only trains students who can already use magic. Ayla can't do this, but is somehow getting enrolled in a Magic 101 course anyway. Lodgerman may be lying for some reason or another, of course, but it isn't addressed.
* ''[[Homestar Runner (Web Animation)|Homestar Runner]]'' is full of this. Strong Bad meets characters from [[Show Within a Show|Shows Within The Show]] whom HE HIMSELF MADE UP.
* Any attempt to create a consistent origin for [[The Spoony Experiment (Web Video)|Dr. Insano]] creates an awful one of these, mostly because there is no effort made to keep things in the [[Negative Continuity|slightest consistent]]. The [[That Guy With theThe Glasses]] site now features an [http://thatguywiththeglasses.com/videolinks/teamt/cr/ff/27514-dr-insano attempt to explain his existence], which will probably be made inaccurate next time he shows up.
** Amusingly, Spoony's explanation for him is "There is no continuity, there is only Insano."
 
 
== Western Animation ==
* For all that's said about the inconsistencies between the Unicron Trilogy of the ''[[Transformers]]'' franchise (''[[Transformers Armada|Armada]], Energon,'' and ''Cybertron''), the main, original, ''Transformers'' [http://tfwiki.net/w2/images2/1/1d/Continuities.png time-line] is even worse. There starts out with two distinct main branches, the original comic and animated series, but then along comes ''[[Beast Wars (Animation)|Beast Wars]]'' and ''Beast Machines'' that uses elements from both series simultaneously. Add that to the splintering off done by the ''Dreamwave'' ongoing series, and you just have to wonder how all of these things could possibly co-exist together.
** The aforementioned series? In Japan, ''Cybertron'' is ''Galaxy Force'', and it appears it's unrelated to its Japanese predecessors, ''Micron Legend'' and ''Superlink.'' The US version tries to tie the two together, but there are still some problems, so a comic was produced that chalked all of this up to a big warp in time and space... even though some minor retcons and a few lines of explanation saying where the older characters might have gone to would have sufficed. Yeah, it wouldn't have been perfect, but come on, was it really necessary... especially since they've already let the original timeline rage out of control?
** Worse, the show itself mentions none of this, and we're left with plot holes big enough for Unicron to fly through. The biggest example is this: when Optimus and Leobreaker first combine, everyone is in total and absolute shock at the impossible - robots combining - happening. ''Guess what the main gimmick of both ''Armada'' and ''Energon'' was?'' (Hint: In Japan, Energon was called Super ''Link.''
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** Furthermore, some characters are "multiversal singularities", meaning that every incarnation of a certain character (Like, say, The Fallen) is the same being, instead of just some alternate version. This leads to some headache inducing retcons among other things.
*** This gets worse with Alpha Trion, who was recently retconned into being one of these. After a [[Mirror Universe]] lunatic version of the character was introduced in ''[[Transformers Shattered Glass]].''
** The latest incarnation of the Transformers mythos is still neonatal (a couple of months old as of this writing), and it's ''already'' turning into a [[Continuity Snarl]]. According to the powers that be, the video game ''[[Transformers: War for Cybertron]]'', the novel ''[[Transformers Exodus|Exodus]]'', and the upcoming TV series ''[[Transformers Prime]]'' are all part of the same continuity. The problem is, the plots for ''Exodus'' and ''War for Cybertron'' are so disparate and contradictory as to be completely incompatible. Time will tell whether the ''Prime'' cartoon will make any attempt to address these discrepancies, or whether it will [[Shrug of God|quietly sweep them under the rug and ignore them]], and [[MST3K Mantra|encourage the fans to do the same]].
*** [[Word of God|Later statements by Hasbro]] have clarified that ''War For Cybertron'', ''Exodus'', and ''Prime'' are part of the same continuity in the same way that the original Transformers cartoon and the Marvel, Dreamwave, and IDW comics are all part of the G1 continuity -- IE, they share similarities in aesthetics and characterization, but are not necessarily consistent with one another. The fandom generally uses the term "continuity '''family'''" to refer to such an arrangement, and this difference in terminology is part of the reason some fans continue to grumble about discrepancies in canon between the three works.
** The [[Transformers Fall of Cybertron|upcoming sequel]] to War For Cybertron may just complicate things further.
* Played for laughs on ''[[American Dad (Animation)|American Dad]]'' when Roger explains the background of a character he's made up for himself:
{{quote| '''Roger:''' My name is Braff Zacklin. I was an international race car driver. One day, a baby carriage rolled out onto the track so I swerved into the retaining wall to avoid it. The car burst into flames, but the baby miraculously survived ... I was that baby.<br />
'''Steve:''' That doesn't make any sense.<br />
'''Roger:''' I'm Braff Zacklin! }}
* ''[[Star Wars: theThe Clone Wars]]'' begins to run into this during the third season. All of the episodes take place in [[Anachronic Order]], making their placement already difficult. Some even [[Retcon]] the timeline for past episodes. For example, events in one episode took place in between the two prior season finales...and implied the second season finale took place before the first.
** It doesn't help that the series itself is retconning a fair amount of older series's, such as many of the ''Republic Commando'' novels.
*** Not to mention killing off a Jedi Master in the middle of the Clone Wars who explicitly was still alive ''after'' the war ended.
* ''[[Care Bears Movie IIA New Generation (Film)|Care Bears Movie II: A New Generation]]'' does this to previous works in the [[Care Bears]] franchise, from having the Care Bear Cousins grow up with the rest of the Care Bears, instead of separately in ''[[The Care Bears Movie (Film)|The Care Bears Movie]]''.