Chekhov's Gun/Video Games

"Snake: Kept you waiting, huh?"
 * Arguably, any Wide Open Sandbox will drip this trope as a simple matter of functionality- although, it might not count as you may only stumble across things after accidentally Sequence Breaking or getting lost.
 * Adventure Games are all over this. If the character adds anything to their inventory, you can almost guarantee it's going to be important for advancing the plot at some point. This depends on the game...some games won't allow you to pick up an item you won't use at some point, but others may have items that appear to be worthless because you went through the entire game without using them; but in fact you could have used that item for an alternative solution to a puzzle. For examples, see It May Help You on Your Quest.
 * Averted by the two Discworld games, where there really are useless things to collect, albeit not many, making them more Red Herrings.
 * There are Chekhov's Guns all over the place in Alone in The Dark, e.g. an Indian cover, a heavy statuette and others whose use isn't quite obvious at the beginning.
 * Clock Tower 3 uses these with its "Evade Points". For example, in the second chapter of the game, almost right before you meet the Minion of the level, you can check a bottle sitting innocently on a table. Alyssa reads the label, and comments "Sounds Flammable". Shortly thereafter you meet the acid spewing Minion, you use the Evade Point located at the bottle and Hilarity Ensues.
 * The original Adventure Game, Colossal Cave (frequently known just as "Adventure"), subverts this: there's a room whose description goes on for pages and pages (compared to a few terse lines for other rooms), in an age when computer memory was at an extreme premium. The room has no effect whatsoever on the plot.
 * Space Quest 6 also does this, giving a rather detailed description for something as minor as a small alcove in the floor.
 * Space Quest 4 has a whole skill that proves utterly useless: the "taste" function. -->"The sewer wall tastes like... blood! You shredded your tongue!"
 * In Crysis, during a late-game lull in the action, a technician conspicuously introduces an experimental gun that fires guided nuclear missiles. Your character asks (half-seriously) if he can try it out, and is unsurprisingly denied; you end up retrieving it later after everything goes to hell, and it is instrumental in defeating the final boss.
 * Inverted in Devil May Cry 3, where human-sized chess pieces are seen in Mission 4 and must be destroyed to pass an area. 3 missions later, it becomes apparent that these chess pieces, now animated, form a type of enemy. Not something helpful.
 * Played straight in the first game, with the biplane "Carnival". It does nothing in the first mission, suspended by strings (along with some marionettes that are definitely enemies), but at the end when the player is meant to think that Dante is screwed, it crashes through the ceiling in perfect working condition just waiting to be used.
 * In the adventure game Blazing Dragons, one of the items you start with is Flicker's "clicker". Every time you look at it, Flicker says that it was his first ever invention, "the practical use of which escapes (him) at the moment". Its only use is in the very last scene of the game.
 * The princess's lute in Final Fantasy I, acquired after the first quest and necessary to complete the last.
 * Aeris Gainsborough owns a materia in Final Fantasy VII that seems to be of no use at all, but proves later to be the materia that summons the ultimate defensive spell, Holy.
 * Additionally, during the Shinra building raid, Cloud finds a megaphone in a locker and decides not to take it. It turns out to be
 * Early in Final Fantasy IX you are introduced to the Pluto Knights, and are told what their professions and specific duties are for no particular reason. Skip to Disc 3, and you are expected to remember said duties so that they can help defend their Doomed Hometown. Doing it perfectly nets you an awesome accessory.
 * In Final Fantasy X the Checkhov's Gun isn't just an object: It's a song. We hear Hymn of the Fayth in many different versions throught the game, and we suspect nothing. Turns out
 * The battle scene between Greil and the Black Knight in Fire Emblem: Path of Radiance sets up two. First, the Black Knight gives Greil a sword to fight with, which is revealed to be Ragnell, the only blade capable of opposing the Black Knight's Alondite, later in the game. Greil, who chose to give up the sword, turns it down, saying in regards to his axe, "The only weapon I need...is right here!" Just before the final chapter of the sequel, Radiant Dawn, the axe Greil was wielding returns--it's Urvan, an absolute Game Breaker as it is not only the most powerful axe, it also has an accuracy of 110, brutally subverting the "powerful but innacurate" nature of axes in general.
 * In King's Quest V, Graham gets a wand in the opening cutscenes that isn't used until the final battle with Mordack.
 * Except for those damn copyright protection sequences. AARRRGGH!
 * In the Ace Attorney games, seemingly random, irrelevant things such as a metal detector or a picture of the police mascot are often inexplicably added to the Court Record as evidence. They will later prove to be crucial in cracking the case. Interestingly, the logical usefulness of an item is almost always inversely proportional to its actual usefulness: murder weapons, security camera videos, and photographs sometimes border on useless, while clay fragments, picket fences, air tanks and guitar picks are crucial to solving the case.
 * The main idea is that the consequential evidence is clearly pointing the guilt of the defendant, and Phoenix's only weapon is to point out the inconsistencies and lies in their testimonies with the seemingly innocuous evidence, as those are the details that everyone overlooks. Phoenix only uses the consequential evidence when he's managed to provoke testimony in conflict with it.
 * The best example might be in the last case of the first game. Very early in the case, you acquire a screwdriver that was evidence in a completely separate case. According to Miles Edgeworth (whose car the victim was found in), it has no relevance to the current case at all.
 * In The Legend of Zelda: A Link to The Past, nearly every boss has a piece of equipment that Link can discover to use against it. In fact, The Dragon, Aghanim, can be brought low by the humble Butterfly Net, one of the earliest pieces of equipment found.
 * Similarly, in Ocarina of Time the Deku Nuts that are useless through the whole game will stun Ganon more effectively than any other item.
 * For that matter, in OoT, Ganodorf's magic can be deflected by the common bottle.
 * That may be, but the bottle is already fairly important (Link can use it to house fairies and lon lon milk that can restore HP in a pinch) so it isn't exactly an example of Chekhov's Gun.
 * And then in Twilight Princess, the very first item Link receives is the fishing pole. Seems relatively pointless, other than for...well...fishing. Turns out that, like the net from LttP, it's a weak point for Big Bad Ganondorf in the final battle; you can't hit him with it, but you can distract him while you get in a few good shots.
 * In Wind Waker, the two songs you eventually learn to awaken the sages can be heard in the title screen music.
 * Oh, goody, a new and really good one. In ''Skyward Sword, there is a statue of a bird's head in Skyloft, that appears to be missing an eye. Odds are, you walked right by it without even noticing, or you may have noticed, but not really paid much attention to it, while on the way to free your Loftwing at the beginning of the game. Well, that missing eye is acquired late in the game, and is actually the key to unlocking the statue's secret:
 * In Ratchet and Clank Future: Tools of Destruction, The Plumber gives the heroes at one point a "3 3/4 centicubit hexagonal washer" "just in case". This item is utterly worthless through the game until the final cutscene, where they use it to.
 * In Super Smash Bros Brawl, we're treated to a scene early on involving a cardboard box on an enemy ship that inches forward once. Later, Snake pops out, and gives one of the only spoken lines in the entire mode.


 * Around the same time, you have King Dedede going around, seemingly a villain, "trophy-fying" heroes and taking them, seemingly on the same villainous side as Wario. Until he robs him. Then it seems that Dedede just wants to have his own private collection of trophies of the heroes, complete with dressing them up with odd badges, screwing around with the mission at hand (and something Dedede, at his most annoying, would plausibly have done). Until, way at the end it turns out the badges Dedede put on them were time release resurectors, and it was Dedede's plan all along to, in case the heroes failed, save them with his own backup squad. It works, very, very well.
 * This is pretty par for the course for Dedede. He's generally found engaged in activities that are taken as villainous or at least troublesome around the start. Come the ending it turns out that, on such occasions as he wasn't acting in the best interests of everyone at large, he's being mind-controlled by the real villain. He's a bit of a Chekhov's Gunman like that. I think I'm using that right, anyway...
 * The badges Dedede uses have an odd twist on this. When they're first introduced, it's completely understood that they're going to be, and instead the player wonders what part they'll play instead. This is also built up with a scene that Kirby picks up one of them, ponders as to what it is, then runs off. Sure enough, they turn out to be character resurrectors and are key to the plot. However, what's always missed is that Kirby had the one that was presumed to be build-up for the other characters, meaning that he was resurrected too. Quite sneaky!
 * Oh, and also inverted, in that the one Kirby found was Dedede's own one, shown by how Dedede didn't have one for himself, meaning he didn't get resurrected. But it turns out that the ones he put the badges on resurrected him anyway, so it didn't matter.
 * The Hitchhikers Guide to The Galaxy text adventure game is pretty blatant about this. Two words, Cheese Sandwhich.
 * Resident Evil 5 manages to use this. Sheva picks up a syringe of serum from an attaché case. Both Sheva and Chris learn that the serum is actually one used to keep their enemy's superhuman powers in check, and that too much of a dose can hurt him.
 * In Fate/stay night Unlimited Blade Works scenario, before his death, Lancer activates his Ansuz Rune to burn his dying place for almost no apparent reasons. That action indirectly saved Shiro, Rin and Saber from a fatal, unprepared encounter with Gilgamesh, which forces him to retreat.
 * It also inverts this trope in another instance where the "gun" in question becomes important after its used. In the prologue, Rin uses a literal family jewel to save Shiro's life and leaves it with his body. Archer returns it to her later that night. Yet in Unlimited Blade Works and Heavens Feel, Shiro is revealed to have the same jewel, and when Rin sees it she realizes The Reveal,
 * 5 Days a Stranger has a perfectly textbook example (perhaps intentionally): one of the very first rooms the player enters has a big shotgun hanging up (yes, over the mantelpiece) but you can't walk off with it, because Trilby refuses to lug a big heavy gun around everywhere. The final scene of the game takes place in that room, and the gun is used to solve the final puzzle.
 * In Earthworm Jim, you launch a cow into the sky at the very beginning of the game. At the game's end, when you defeat the Queen, the cow comes flying down and crashes onto the princess you just saved.
 * In Xenogears, right at the start you can buy an accessory that prevents fuel drain. This is apparently worthless, since nobody in the game * has* a fuel drain attack... until you reach the final boss battle, where fuel drain can become a crippling problem if you're not careful. (No other stores after this one sell the anti-fuel drain accessory.)
 * An available accessory that appears to be worthless, with no indication that you should buy it but without which the final boss battle is unnecessarily hard? That's not an example of this, that's Guide Dang It in action
 * What about the Mermaid tear, which you get at the very beginning of the game, and which you can't use until during a certain end-game side-quest?
 * In Super Robot Wars, Lamia Loveless (also her distant sister Aschen Brodel) is installed with Code: DTD, which serves as a 'memory reboot', that even her creator Lemon Browning deems "You probably won't need it in this war...". But then in OG Gaiden, it serves to be a truly important device when Axel Almer saved her from Duminuss and ODE influence, by resetting to the point that their alteration never occurred. Her distant sister Aschen from Mugen no Frontier, however, uses it on regular basis to kick the enemy's ass.
 * In Saisei-hen, Zero accidentally placed a geass on . Few chapters later, Crowe believes that , to which Marguerite tells him otherwise.   attacks him at that moment, only to halt in its tracks after Zero reissues the same command, proving to Crowe that.


 * In Metal Gear Solid, in every game including the two prequels,the pack of cigarettes is highlighted early on in the game- later, Snake can, and indeed, must, use these to detect security lasers. There are other uses for them.
 * There's at least one other way to detect the lasers, so he doesn't have to use the cigarette.
 * Even more explicitly, in Metal Gear 2 Solid Snake: Solid Snake, the seemingly useless lighter and aerosol can are combined to create a flamethrower which defeats Big Boss.
 * The USS Missouri in MGS4 fits this trope. Insignificantly introduced early in the game as a real-life WW 2 battleship that had been recommissioned as a training vessel, it later becomes the only ship in the US Navy to survive the Big Bad's plan to disable all the weapons in the world(due to not being linked to the "System" which controls all of them), and ends up carrying and supporting the main character in their assault on his floating fortress.
 * Another good one: . It makes sense when you realize that said grave marks the resting place of . Now guess.
 * In the prologue of Metal Gear Solid 2: Sons of Liberty, which centres on a US Marine Corps. Metal Gear model, a brief mention is made of a Metal Gear project led by the US Navy..
 * From the beginning of Metal Gear Solid 3 Snake Eater, Naked Snake has a mask in his inventory which seems to serve no real purpose. Speaking to Major Zero reveals that "its creator pitched a fit" when the mission it was intended for was scrapped, and that Snake was given the mask (instead of it being thrown away) because it might come in useful. Later in the game,.
 * The same mask can also be used.
 * In Halo 3, 343 Guilty Spark has a special eye laser that he uses to fight off Flood and kill Sergeant Johnson.
 * There's a Chekhov's Gun earlier in the series. In the first Halo, Cortana steals Installation 04's Index, the only known way to fire the Halo. At the end of Halo 3, Cortana uses that same Index to fire the new Halo and wipe out the Flood.
 * Very few people then remembered that the title of the sub-level where you retrieve the Index is caled 'The Gun Pointed At The Head Of The Universe.' This is a literal Chekhov's Gun.
 * See that very prominent Bowie knife Buck keeps strapped on his chest in ODST? Well, Bungie didn't just stick it there for show.
 * An interesting one for Halo 3 ODST. In the ViDoc Desperate Measures Buck mentions that they "can even commandeer the city's garbage trucks if we need 'em." Well guess what you wind up protecting in the last level?
 * How about that Nova Bomb in First Strike that showed up again in Ghosts of Onyx. Not in the games, but close enough.
 * Mass Effect. Throughout the Citadel there are these innocuous insect creatures called the Keepers, who don't talk to anyone and only seem to exist to keep the impossibly ancient space station running. It turns out that the Keepers' job is to maintain the Citadel because it is a giant Mass Relay that will bring the Reapers into the galaxy. The Keepers' job is to enable civilizations that discover the Citadel to use it without realizing the stations' intent, enabling the Reapers to hit the center of galactic civilization first and without warning.
 * Mass Effect is replete with these. Who would guess that the Mass Relay sculpture in the Presidium was the destination point of the Conduit? (Though if you have Kaidan in your group he'll comment that the statue is making his teeth vibrate.) Or that the krogan genophage and the Rachni War would become important plot points on two of the planets you visit later?
 * A very subtle example takes place in the Citadel Council tower, if you have Ashley in your party. She'll comment that "I bet these stairs aren't just for show. They'd make for good defensive positions if this place is ever attacked...." Turns out, you are the one who does the attacking at the endgame.
 * Incidentally, they don't make very good defensive positions.
 * Well, that's kinda Gameplay and Story Segregation. Except instead of story, it's a lack of Critical Existence Failure in real life.
 * A very minor example occurs if you choose all the paragon interactions with the Asari Consort. She gives you a seemingly worthless trinket that you can later use on another planet to unlock a cache of valuable equipment.
 * Quite a few things have been set up as possible Chekhov's Guns which been fired yet. One of the best examples is Haestrom's sun which is, inexplicably, destablizing much faster than it should be.
 * It is stated to be due to dark energy, but it was really set up as something possibly important. A dropped ending of 3 would have revealed the use of mass effect technology was producing so much dark energy it was destabilizing stars. The Reapers had been created to work on a solution while keeping the dark energy pollution at acceptable levels.
 * Double Subverted with the Great Rift on Klendagon, a geological feature prominently noted as being caused by a miss from a powerful weapon. Come the second game it turns out the important thing wasn't the weapon itself (it's millions of years old and inoperable), but what it was shooting at (a now-dead Reaper to go poke at for answers).
 * Front Mission: Gun Hazard winds up giving us a Chekhov's Laser Platform by way of a solar energy collector subcontracted out to The Syndicate.
 * In Taiyou no Shinden Asteka II (a.k.a. Tombs and Treasure), you get the lighter from the first room in the game, and it can't be used for anything until the last room in the game, where it's necessary to complete the game. You obtain a silver key at the same time as the lighter, which is later used to unlock the Temple of the Sun and acquire the game's prime MacGuffin, the Sun Key.
 * The World Ends With You. In the second chapter, in the cutscene before the second to last boss, Megumi reveals the only thing protecting Neku from his brainwashing is his player pin, so he imobilizes Neku and crushes the pin. It didn't work. Why? Because in waaaaay back in Chapter 2 of the first week, Shiki points out how Neku has 2 player pins, the extra given to him by Josh.
 * In Loom, the first spell cast in the game (and that is periodically replayed to you through it) is the last spell you cast.
 * One of the first things the Postal Dude's Bitch says in Postal 2 (before the game actually starts) is "don't forget my rocky road." At the end of Friday (the last day), she nags the Postal Dude about her rocky road again (after not being mentioned throughout the rest of the game), to which the Postal Dude realizes that he completely forgot about it from the very beginning and shoots himself in the head to escape his wife's nagging. This leads to the events in the add-on, Apocalypse Weekend.
 * In God of War, the sword-shaped bridge you run over early in the game turns out to be a real sword, and is the weapon needed to finish off the Final Boss.
 * Mega Man loves this. It's a safe bet that the most bloody useless Robot Master weapon you get will be the one Wily's weak to. Most extreme offenders: Mega Man 3 (Top Spin, except it is quite usefull if you know how to use it just watch ) and Mega Man 7 (Wild Coil).
 * Averted in Mega Man 1 (Fire Storm) and Mega Man 4 (Pharaoh Shot).
 * In Mega Man 10,.
 * Used and reemphasized to the point of deliberate annoyance in Space Quest VI. "Hey, you forgot your fish!"
 * Hotel Dusk: Room 215 features multiple subversions. First, the inconspicuous sewing machine and adhesive remover that come in a package near the beginning, and whose only introduction is Kyle commenting that they're useless prove to be essential to completing the game. On the other hand, the screwdriver that he repeatedly and visibly proclaims will surely be useful... has absolutely no possible use at any point in the game -- the only thing it can accomplish is getting you a Game Over if you don't put it back at the right time.
 * Tales of Symphonia drops this in the form of necklace that Lloyd promises to give to Colette. First, Lloyd forgets to make it, then Colette drops a It's Not You, It's My Enemies on him, then it breaks, and is forgotten until Colette "dies" and it becomes the MacGuffin that saves her.
 * Also, in one alternating cut scene in the snowy town I forget how to spell Flanoir, depending on who you talk with as Lloyd, you get a different trinket. Later, the trinket saves Lloyd's life by keeping an arrow from piercing his chest.
 * The Fire Spears from the first Suikoden. When first introduced, it seems to serve no purpose, but Odessa insisted that Someday This Will Come in Handy. Later, the Liberation Army is flawlessly beaten by Teo's Armored Cavalry... only after getting back the Fire Spears they end up winning.
 * The Fire Spears also come back in the sequel, where they're first used to defend the Mercenary Fort against the Highland Army, though they lose effect in the next battle. Shortly after the player loses the second battle, the Fire Spears are again used to distract Luca Blight while everyone escapes.
 * Possibly a case in Sonic Adventure. Immediately after the first level (Emerald Coast), Tails explains to Sonic that his new Tornado II prototype is powered by a Chaos Emerald. Near the end of Sonic's story, the monster Chaos gets six of the seven emeralds. Where was the seventh? Still inside the Tornado II. May not directly count for two reasons: 1, the emerald in the airplane is different than the one referenced earlier, and 2, the Chaos Emeralds were established from the very beginning (arguably from previous games) as being supremely important.
 * When replaying Silent Hill, you find a device in the 7-11 lookalike that is of no use unless you're at certain locations (e.g. the rooftop of the oxidised Midwich Elementary) through which you get the Alien ending and a raygun for the next replay.
 * In Silent Hill 3, you have Heather's pendant in your inventory from the start. There's no indication that it's important and all you see when examining it is a little red bead-like thing inside. This turns out to be the one thing you need at the end of the game.
 * Lunar: Silver Star Story Complete gives the hero Alex an ocarina item from the very start. It cannot be dropped or sold, and doesn't seem to have much purpose other than to take up a valuable spot in Alex's limited inventory (in some versions it opens up a sound test, but that's it). He plays it briefly in an opening cutscene and then it's never once mentioned again...
 * In The Secret of Monkey Island, the pirate drink "grog" is referenced early on, and a pirate in a bar says the stuff is so strong that it can "eat through a pewter mug". It's also described as "the most caustic, volatile substance known to man!" Later, you must use grog to eat through the bars of a prison ... and you have to use several pewter mugs to transport it there as it keeps eating through them!
 * In another example, Guybrush Threepwood comments early on in the first game that he can hold his breath for ten minutes, a skill he considers useless. It ends up working wonders later in the game when he's thrown off a pier with an weight tied to his waist.
 * The writers were so attentive, that if you wait 10 minutes while guybrush is under water, he will actually drown right at the 10 minute mark. It is the only way to lose the game.
 * The Monkey Island series often plays this straight, (it is an adventure game, after all). It almost always subverts it as well. While most items you pick up must or can be used at one point or another, there are always a couple items you can pick up (usually towards the beginning of the game) that have no use whatsoever except for humor value or extra background flavor.
 * Possibly the best use of this trope is when Stan hands you a bunch of random advertising pamphlets, seemingly with no use whatsoever. However, one of them just happens to be called "How to Get Ahead in Navigating". And when you encounter a group of people looking for a navigating head...
 * But then subverted in Curse of Monkey Island, where Bloodnose the Pirate gives you similar pamphlets that turn out to do absolutely nothing.
 * A particular heartwarming example from Tales of Monkey Island:
 * Done in Castlevania: Dawn of Sorrow; at one point, Soma is given a good luck charm from Mina Hakuba, his not-girlfriend. If you don't equip this item before going into a certain cutscene,  It's also done later on to get even further in the game; beating the boss Paranoia gets you the ability to enter mirrors and use them as portals. When you finally reach the pinnacle of the castle where Dario is waiting, you notice a demon lurking in the mirror behind him, boosting his power. Entering the mirror triggers the real boss fight with Aguni. Beating Dario just ends the game prematurely.
 * Subverted in Left 4 Dead. In the No Mercy campaign, there was an incident where the pilot who's gonna save you says there was an incident that happened. If you went through the commentaries, you would know that originally, it would be revealed he picked up an infected person who bit him, which caused the helicopter to crash after he turned as well. This was scrapped because, as playtests showed, people felt that a sense of accomplishment was taken away from them by that scene, so they just got rid of that ending bit, rather than fix it.
 * This is actually soon to be un-subverted. Valve has just announced a new campaign that takes place after No Mercy where the helicopter crashes called "Crash Course."
 * Re-subverted in The Sacrifice comic. The comic reveals that the survivors are immune carriers of the disease, which doesn't infect them, but infects all non-immune with which they come in contact, including the helicopter pilots.
 * Disgaea Hour of Darkness uses Flonne's pendant in this fashion. One, it's an indicator of Laharl's Character Development (it burns hotter than the magma he fished it out of when it's introduced but does nothing when he grabs it near the end). Second, it's a sneak peek at the motives of two other characters who touch it - Dark Adonis Vyers (aka Mid-Boss ) and Vulcanus.
 * The four leaf clover seal on Rozalin in the second game. Turns out to be a seal on the real Overlord Zenon, a Cosmic Horror level overlord.
 * The Nancy Drew games are in love with this trope. There are many instances where the player will come across something that appears to be useless until the end of the game, which include:
 * The fire alarm in the second game, which will guarantee a game over if pulled too early, but will save Nancy's life at the end of the game,
 * The chandelier in the third game, which once again guarantees a game over if untied too early, but is used to trap the culprit at the end, and
 * A ring won on the carousel in the eighth game that becomes useful not once, but twice at the end. And these are just a few examples...
 * The chalice in Uninvited serves no ready purpose, yet you're forced to take it along in order to open a door about halfway through the game.
 * Lampshaded in Discworld Noir, when Lewton notices a grappling hook behind the troll he's trying to question. Sure enough, while he can't collect it immediately, he gets to use it later. "I couldn't have been more interested if it had had 'Plot Device' written all over it."
 * The first day of the first route of Tsukihime has Shiki bringing an unidentified white ribbon with him for no particular reason. When you eventually get to the maid's routes, Not bad for an item mentioned in one sentence offhandedly when Shiki is unpacking, eh?
 * Semi-subverted in the first Broken Sword. At the start of the game George is shocked with a hand buzzer by the owner of a joke shop, who then laughs and gives it to him as a gift. When George tries to pull this prank on anyone else in the game, they all refuse to shake his hand for one reason or another. It's only when an assassin has George helpless at gunpoint at the top of a mountain that George gets a chance to use it, shocking the assassin and dramatically leaping to safety while he fumbles with his gun.
 * Most of the early text based adventure games (e.g. Adventure and the Zorks) had you controlling a character traveling through what was essentially a maze of rooms in which were occasionally placed certain things that you would use later; i.e. "You're in a small room with exits to the east and the north. You see a small table here. You see a flashlight here." You could generally plan on needing that flashlight later so you would, "get flashlight".
 * Similar to the above example, nearly every Adventure game, such as King's Quest or Monkey Island, has your character collecting seemingly random items, all of which will be used later. One game that averted this was the original Maniac Mansion game, which, due to having multiple characters and multiple endings, had many items that were worthless if you had the wrong party. It also had items that were completely worthless no matter what, such as the chain saw, which had no fuel.
 * Interestingly, the sequel goes back to the traditional tactic of not only having every single item be used at least once, but if the item is small enough to be passed through time, it will be needed in another time.
 * The only item that's never used is the hubcap....and you can not pick it up.
 * Standard policy for adventure games is that if it's not nailed down, take it, you'll need it. If it IS nailed down, find a way to remove the nails and take it. And take the nails too. Many, many early adventure games punished people for following this advice before realizing that it was a bad idea. For example, in Uninvited, picking up a certain seemingly important gem results in being demonically possessed about three turns later. Whoops.
 * The Secret of Monkey Island plays with this one. At one point you can pick up a staple remover, which Guybrush remarks will probably come in handy. Beyond its initial use in a cutscene where it is used on a Yak, it is useless throughout the rest of the game. You have the option, however, of throwing it in the cooking pot on the ship, which is also a way to lose most of the items that could come in handy later. However, if you choose not to do this, you will lose it before you get to Monkey Island anyway, as the original game removed the items not needed as a memory saving measure.
 * In ''Monkey Island 2: Le Chuck's Revenge, you can you buy some clearly irrelevant items in the shop on Booty Island (such as the Elvis collector plates and hub caps), they come to no use in the game, and you can run yourself broke by buying them. With no other way of earning the money, this can mean you are effectively stuck in the game. Also, you can take out all the books in the library on Phatt Island, but only three of them are useful in game. Most of the other books will provide generic responses such as "This isn't that interesting, I'm not sure why I checked it out", though some, such as those written by Elaine (under her pseudonym Melanie Leary) will provide unique responses (they're mostly about how much she disliked Guybrush when she first met him).
 * Many adventure and RPG games condition pack-ratting behavior as an inventory management pressure, especially if there are inventory limitations and/or economic necessities. Not all games give clues whether the items are useful for problem-solving, or at least for uncovering Easter Eggs, or just Vendor Trash or completely dead weight. Recently the games have gotten easier by simply making the 'Handy' things undroppable/unsaleable, rather than more intuitive in their problem-solving application.
 * Mana Khemia Alchemists of Al Revis introduces us to Sulpher, Snarky Non-Human Sidekick Mana of The Hero Vayne. Sulpher knows a lot more of what's going on than what he's been letting on, and he is quite strange for any ordinary Mana, and that's saying something.
 * In Fallout 3, when you first enter the Citadel laboratory you see a giant robot that some scientists are working on. At the end of the game they finally get it to work and help you in the assault on the memorial.
 * The code for activating the machine at the end of the game,, turns out to be . Your father mentions this conspicuously so far back that you're an infant at the time.
 * In Drawn to Life: The Next Chapter for the DS, Mike eventually turns out to be a key character (he's the reason Mari turned to Wilfre).
 * At the beginning of the Call of Juarez: Bound in Blood, Ray and Thomas kill a company of Union troops attacking their family estate. Later, Colonel Barnesby and his men come by and collect all the rifles off the dead troops. These rifles become a major MacGuffin later in the game's main plot.
 * The Seal of Mar at first seems like it's just a way to identify the Kid as the lost heir... until we find out that it seems to possess some mystical properties, and.
 * In Bioshock, when the sub carrying Atlas' family is blown up, there's no sign of any bodies from it -- a bit odd, given the game's attention to detail, but it might be an oversight or they just felt they weren't necessary. In Sander Cohen's level, you can find posters for a play called
 * Early on in Star Ocean: The Last Hope, Reimi scolds Lymle for drawing on the floor of your spaceship. It is played for laughs in a "precocious child" sort of way.
 * In Star Ocean: The Second Story: It's introduced early in the plot that Rena had a pendant with her, as the last memento of her old family. Well as it turns out . Who would have thought?
 * True Remembrance gracefully weaves at least half a dozen of these into the first chapter, in asides and offhand comments that normally one would disregard as mere color in a Visual Novel. The entire second half is comparable to a machinegun, except instead of shooting bullets, it shoots Guns.
 * Koudelka, less-well-known prequel to the Shadow Hearts franchise, has the main character lose something in the opening FMV. You can find it again about 3/4 of the way through the game.
 * In "Modern Warfare 2", as Price is giving his inspiring speech, a knife appears on the screen when he talks about killing the Big Bad. Take a guess what weapon kills the Big Bad...
 * And While we're on the subject of Call of Duty, In Black Ops, at the end of the First Mission of the Game, A Cargo Ship is Briefly visible at the end of the Mission.
 * During "Modern Warfare 2"'s "Museum Level", there are two mysterious soldiers in Juggernaut armor and they are the toughest things that you can find during the whole game.
 * Strange... the top of the page had the necklace example, but not the example from Chrono Trigger, where at the beginning of the game, Crono bumps into Marle, knocking her pendant off, and giving ti back to her to have her join you. She refuses to sell it because it has "a lot of sentimental value". Later,
 * In the first Mata Nui Online Game, after the Po-Koro event, as a reward for helping the town, you are given an item, the "Po-Koro chisel" which seems to have absolutely no use, surprising in a game where every single item serves at least some purpose in one way or another. Flash-forward to the ending cutscenes of the game where Takua is fleeing from, and he discovers a device with an indentation that bears a staggering resemblance to the chisel. If you can't guess what happens next, you haven't been paying much attention to this page.
 * Dragon Quest VIII: After helping Prince Charmles collect an Argon Heart for his Rite of Passage, the Royal Brat promptly renders the whole exercise pointless by buying a bigger heart, leaving Eight and his friends with a pretty but pointless trinket. However, the heart comes back into play towards the climax, when the King of Argonia reveals . Then the good ending reveals the Heart's true purpose:.
 * In Crash Of The Titans, in the opening cutscene, Coco tries to get Crash to help her get a butter-recycler working. She asks him to hand her the 'Transpoolooper', a purple spanner thing. they are then inturrupted by Cortex in his big blimp, setting the plot in motion, and Crash puts the Transpoolooper in his back pocket. At the end of the game,
 * The MOTHER series has a few of these.
 * In Earthbound, the Meteor that starts off the adventure by bringing Buzz Buzz to Onett is used much, much later
 * In Mother 3, the Courage Badge you are given early on is
 * In Pokémon XD Dr. Kaminko says that his Robo-Kyogre will never be of use after you manage to defeat Robo-Groudon. It later turns out to be.
 * In Pokémon Black and White in the museum in Nacrene City just before the gym, there is a Dragonite skull, a fossil, a meteor, and a regular rock found in the desert that is only there because it looks pretty.
 * Happens in Mace Griffin Bounty Hunter. Midway through the game, you find a strange gun which has the unique property of having unlimited ammo but is pathetically weak against normal enemies, making it mostly useless... up until the final level, where it turns out it is the only weapon that can harm the Watchers aliens.
 * Dragon Age II.
 * The qunari, who know how to make gunpowder, show up in Act I...
 * A seemingly innocuous Fetch Quest [[spoiler: turns out to involve gathering the ingredients for the bomb used in said "boom scene."
 * In Portal 2,
 * At the end of World 1 of Super Mario Galaxy 2, Bowser Jr. can actually be seen piloting a small spaceship shaped like an evil smiling head. That spaceship is later revealed at the end of World 3 to be the head of Megahammer, the level's boss. Once Megahammer if finally defeated, its body can be seen one last time as the first planet encountered in the final Bowser Jr. level.
 * Later on, you run into several Green Lumas who tell you about "120 cosmic jewels."
 * At the very beginning of Golden Sun, The Wise One does... something just before Isaac and Garet leave Sol Sanctum with the Mars Star. At the very end of the sequel, it's revealed that at that time, the Wise One
 * A subverted one from the first game: Entering the areas Tret has cursed causes an instinctive force-field Psynergy to protect the kids from the curse. Garet comments that it would be neat if they could learn to use it consciously. It never comes up again.
 * And in Dark Dawn we have a rather spectacular one. The effective Noob Cave of the game is a supernaturally darkened forest. Isaac comments that you should light up these places to drive creatures of darkness away... with Fireball, for instance.
 * The Orion Conspiracy has every item you pick up as this. Yes, every single item you pick will have a use in one form or another. In the case of some of the items, it is not too difficult to figure out what to use them on. For other items, it will be difficult to figure out what to use them on.
 * The Reconstruction has two, one of which is an actual object and one of which is a seemingly-throwaway factoid. The first is, which turns out to be . It is also the reason why . The second one is . This ability is used to.
 * Very early Forsaken players in World of Warcraft will remember that as early as vanilla, you could run a questline where you gather pumpkins from a farm, gather ingredients for a plague, and give it to captured human. The same disease you were sent to make way back then shows up much, much, much later. As in toward the end of the second expansion later, when
 * In the short story Blood of Our Fathers, Varian, surveying the damage Deathwing has done to Stormwind, finds a small fragment of Deathwing's elementium armor and takes it with him. Toward the end of the story, he uses it as an Improvised Weapon to kill a drakonid.
 * In Rockman No Constancy, you come across a boss gate that's blocked off early on in Flash Man's stage.
 * The Elder Scrolls series actually subverts this rather brutally. In a game where everything can be picked up, from coin to silverware to pillows, there is very often not a use for everything beyond taking up space.