This trope is about cats that are exceptionally larger than is the norm for their species. For the standard "lions and tigers" variety of big cat, see Panthera Awesome. Fictional Catfolk species do not count for this trope, however big they may be.
The name is a combination of Mega- from Greek megas, meaning large or great, and Neko from the Japanese word for cat. It should not to be confused with Meganekko (two Ks, one word), which is about how bespectacled girls are cute. However, do compare with Cute Kitten. If this trope and Meganekko do overlap, she'll be a Funny Animal, Genius Bruiser and Cute Monster Girl.
Anime and Manga
- Magical Girl Lyrical Nanoha (original series): The pictured cat's time as Nanoha's mount proved to be short-lived, as it was quickly defeated by Fate in her first battle against Nanoha in one of the most tragically hilarious boss battles in the series.
- A student film in Kimagure Orange Road has 'Jingorojira', a Godzilla-sized version of Jingoro, the Kasugas' much-suffering housecat.
- Kotatsuneko from Urusei Yatsura and Maomolin the Bakeneko from Ranma ½ are both huge ghost cats.
- From Azumanga Daioh: Chiyo-Dad!
- Kamisama, the wacky, color-changing, vending machine-dwelling, King of All Cosmos cat-thing with a Verbal Tic from Pani Poni Dash!.
- Cait Sith in the Aria series. As a King of Cats, it only makes sense he's more than human-sized.
- Tasuke is attacked by one in Mamotte Shugogetten as a trial by a newly-awoken spirit.
- Saber Leomon and Bancho Leomon are Mega leveled Neko Digimon. Regular old Leomon does deserve a mention though considering he's taller than most adults.
- Other digimon examples include the tiger Deva Mihiramon, Lynxmon, and DinoTigemon, to name a few.
- The Cat Bus from My Neighbor Totoro, which is Exactly What It Says on the Tin. In Japanese folklore, cats, like Tanuki, can change shape at will - so the Cat Bus is an ordinary cat who got bored and decided to spend some time being a bus. As you do.
- Kyaa from Please Save My Earth, the giant cat-like alien companion of Shion's adoptive father, named after the scream people let loose upon seeing him for the first time. (Shion uses Kyaa as a bed at one point.)
- Kirara from Inuyasha. Spends most of the time at normal cat size, but gets big enough to ride when needed.
- In Battle B-Daman, Armada is a cat who appears to have his eyes closed all the time, whatever that means in anime. He's pudgy, which is set off somewhat by his head being about a third of his body, and he's tall in relation to the more humanoid characters.
- In Shinzo (Mushrambo in Japan), Kutal is a cat creature who also has that type of eyes. His height isn't a whole more than his companions', but he's quite rotund. Then there's his leonine hyper-form, which is much less bulky and much more badass.
- Cardcaptor Sakura episode 31, a cat enlarged by the Big Card (playfully) attacks Syaoran and Meiling. It returns to normal once Sakura seals the aforementioned card.
- In another episode, Sakura is shrunk by the Little Card and runs into a cat which, compared to Sakura, is a Mega Neko. It tries to eat her.
- And Kero himself, once his powers are fully unlocked, becomes a fire-breathing winged lion. Too bad his powers often end up being useless against the Monster of the Week...
- In Ultra Maniac, episode 7: 'Gigantic Pets', a magical growth-portion makes its rounds at the school. Among the 'victims' is Sakura's familiar, the usually-tiny kitten, Rio. By the time the girls realize what's happening, he's eye-height with them, and still growing. By the end of the episode, it can barely fit in the gym-hall.
- In general, ridiculously huge cat-like monsters are often used in the role of a Monster of the Week. Examples can be found in Sailor Moon, Tokyo Mew Mew, Blue Seed, and probably in other series.
- Kuma in Sketchbook. When one of Sora's friends mentions coming across the bear-like cat, Sora corrects how big his head width was. Yeah, he's a big kitty (but still manages to beat Mike in a height superiority contest).
- The tank in Those Who Hunt Elves gets possessed by a cat spirit. Just pause for a moment to consider the behavior of a tank that thinks it's a kitten...
- Under that same concept, one Ranma Saotome when he's been bugged by a cat that little bit too long..
- Naruto has the two-tailed beast Matatabi, who is a giant nekomata (a two-tailed cat)
- Nagasarete Airantou has Taiga and Shima-tora, the Northern and Southern leaders, both giant two-tailed cats.
- The Bakeneko of Ayakashi Samurai Horror Tales. Unlike most of the examples on this page it is not cute.
- RIN-NE has Rokumon the black cat, who sometimes is one of these. Let's just say Rumiko Takahashi seems to love this trope.
- The demonic cats sent by Emperor Ganishka to Vritannis to terrorize the denizens in Berserk.
- Nekomaru from Kidou Shinsengumi Moeyo Ken.
- In the first episode of season 3 of UFO Princess Valkyrie, Cat-Eared Maid-Chief Sanada-san breaks out a Mecha-Mega Neko in order to fight a Brainwashing Meganekko. She counters by giving it a gigantic pair of glasses, thus turning it into a Mecha-Meganekko-Mega-Neko. Perhaps a borderline example, but too awesome not to mention.
- Nyanko-Sensei from Natsume Yuujinchou is quite portly in general, being occasionally referred to as a 'pig-cat' - and when he jumps out of Sleep Mode Size, he's a huge dog. But the point where he really turns into this trope is in episode 12, when he comes into contact with a curse-mark that screws his powers up. His Sleep Mode Size shrinks to the size of a teacup, making him hillariously cute, but when he attempts to assume his 'true' form, he instead winds up as... a severely overweight cat the size of a small elephant.
- Adrian Veidt's genetically modified pet Bubastis in Watchmen, a large pink lynx.
- The Lovely Angels have Mughi, their technician/partner/pet: He's essentially a huge alien puma with a sharp mind, claws that can tear through hullmetal, and mental command over the electromagnetic spectrum thanks to his facial tentacles. (He also has an addiction to bad soap operas, according to Warren and Ellis..)
- Rock Jaw in Jeff Smith's Bone.
- Explored in the The Sandman short story "Dream of a Thousand Cats": According to Dream, cats were initially on top of the food chain, towering over humans like they now tower over rats. Humans changed this by simultaneously dreaming of a world where they were at the top. The cat protagonist then goes off to try to convince a thousand cats to turn the world back into what it was—but have you ever tried to get that many cats to all do the same thing?.
- Franco-belgian comic Mélusine has the titular protagonist face at one point a giant black cat. Makes even more sense if you consider his assistant is superstitious and actually afraid of black cats.
- One Italian Donald Duck comic had Donald's pet tomcat Tabby (who had appeared in a few comics before, usually as a foil to Fethry) drink a mysterious growth serum and grow to be bigger than a tiger. Interestingly enough, Tabby did not return to his normal size at the end of the story, and has not appeared in any comics since then.
- Shamisen, Kyon's cat, at one point of Kyon: Big Damn Hero.
- In Team America: World Police the team is menaced by a "panther" that is very clearly just a regular house cat. In this case, the fact that the characters were all marionettes meant that they didn't even have to cheat to make the cat look big.
- Ravage from Transformers, isn't he just adorable?
- One of the alley cats that threaten Tom and Jerry during the Non Sequitur Scene from the infamous Tom and Jerry movie for some reason, is the same height as a human.
- Village of the Giants briefly has a giant cat as the result of the growth formula experiments.
- The Cat in the Hat is a six-foot-tall housecat.
- Llyan, from Lloyd Alexander's The Chronicles of Prydain. Fflewddur tames her with his harp and rides her in lieu of a horse.
- Anne Bishop's Black Jewels trilogy features plenty of intelligent, telepathic animals. The most impressive of them is Kaelas, an Arcerian cat, described as "eight hundred pounds of feline fury".
- Although it's never specified in Bulgakov's The Master and Margarita how big Begemot/Behemoth is, Vladimir Bortko's TV adaptation of the novel portrays him as really huge, the height of a small human when standing.
- The Dresden Files: Harry Dresden's cat Mister is easily 30 pounds and is described by Harry as being possibly part-bobcat.
"He's huge! What do you feed him?"
- Kat Kong is a children's book by Dav Pilkey featuring pictures of a "giant" cat running around a model city.
- Tevildo, Lord of Cats, whom you probably know in his later, more conventional version: Sauron.
- Edgewood Dirk, the prism cat, in Terry Brooks's Magic Kingdom of Landover series.
- "F-lions", from World War Z are feral felines descended from domestic housecats and/or wildcats, which grew almost to cougar size while surviving in the depopulated ruins of North America.
- Guenhwyvar, the animal companion of Drizzt Do'Urden, may qualify as Mega Neko. She is described as being a six hundred pound panther. This would make her about the size of a large Siberian tiger.
- Bustopher Jones, described as the "stoutest of Cats" and a "twenty-five pounder" in Old Possum's Book of Practical Cats.
- Diesel of the "Cat in the Stacks" mystery series is a 33-pound Maine Coon who is said to be about half the size of a full-grown Labrador and accompanies his owner everywhere. The town they live in are still adjusting to the sight of a really big Maine Coon cat walking around on a leash.
- One of the stories from Scary Stories to Tell In The Dark, called Wait Til Martin Comes, featured three black cats. One of them is a normal-sized cat, the second is the size of a wolf, the third is the size of a tiger. In the end, none of them are Martin, the story implies that Martin is the size of an elephant.
- The Redwall series features several felines. They're usually larger than the heroes, so in story context they might be Mega Neko, but keep in mind the heroes of Redwall are mice.
- In Clan of The Cave Bears sequel The Valley of Horses, Ayla rescues and raises a baby cave lion. The cave lions were larger than their modern counterparts to begin with, but Baby was supposedly gigantic even for his species; because Ayla always made sure he had enough food and was not menaced by other lions or the weather, he was able to grow to his full potential. He was described at his full size as being as tall in the shoulder as a horse, and considerably longer from head to tail.
- The Star Trek TOS episode "Catspaw" featured a Sufficiently Advanced Alien who turned herself into a giant cat. Unfortunately, the drama was ruined by low budget special effects fail. The "giant" cat was very clearly just a regular house cat that was stuck in a box made to look like one of the hallways. It didn't help that we'd already seen her in regular-sized cat form - played by the same cat.
- The Goodies had Twinkle a.k.a "Kitten Kong".
- An episode of Uncle Morty's Dub Shack has giant kittens terrorizing the city, and are just too darn cute to do anything about.
- The enormous cat in a Monty Python's Flying Circus animated segment which defeats the Killer Cars by walking on two legs. In a spectacular Reverse Funny Aneurysm, the cat looks very familiar to anyone who's spent time on certain Imageboards. Yes, that's right: the Killer Cars were defeated by Longcat's Siamese cousin.
- The Smilodon Dopant in Kamen Rider Double. Unlike the other Dopants, who are human when untransformed, the Smilodon Dopant's true identity is a cat.
- Oversized black felines were featured on Monsterquest, which concluded that the investigated sightings were either escaped pet leopards, jaguars returning to their historical range, or ordinary housecats mistaken for giants due to a lack of nearby objects to show perspective.
- Steve French in Trailer Park Boys.
- The rather Surreal Music Video for MGMT's "Time To Pretend" features a few Mega Neko, including one with a person riding it.
- A parody of "My Grandfather's Clock", "My Grandmother's Cat" tells of an overfed feline that grows to tiger-like proportions and attempts to eat its owner.
- Shonen Knife's album Genki Shock includes a song called Giant Kitty (though apart from the Title Drop the lyrics suggest it's really normal sized).
- In Elite Beat Agents, the Hollywood stage, "Makes No Difference", chronicles the making of the fictional action film Romancing Meowzilla.
- The Catsaber in Disgaea 4: A Promise Unforgotten can become one if another monster fuses with it.
- Final Fantasy VII: one of the combinations in Cait Sith's Slots Limit Break causes him to grow to enormous proportions.
- A subtle inversion can be found in the Ghost Sweeper Mikami game, where one of the levels features the protagonist being shrunk to the size of an action figure, and forced to ride on a normal-sized (but relatively huge) calico.
- This is based in an episode of the anime, where Mikami is under a curse that progressively shrinks her. Only that she rides on Yokoshima instead, even using reins.
- Speaking of giant calicos, Nago from Kirby's Dreamland 3 and his subsequent game cameos count as well. He's unique from Kirby's other Animal Helpers in that he essentially rides you by rolling you into a ball. It gets bizarre once you have the Parasol power equipped...
- In Super Paper Mario, Francis has two gigantic ROBOT cats called BigMeows.
- Grim Fandango features cats roughly the size of horses that are used in greyhound-style races.
- One of the enemies in Mega Man 3 is a robotic cat several times Mega Man's size.
- The boss Andre in Shadow Hearts: Covenant is a cat that stands taller than any of the party members, leading to Yuri saying one of the funniest lines ever:
Yuri: "That... is one giant pussy."
- Mao from Shadow Hearts: From the New World is also a giant talking cat, but she's on your side, despite being a gangster capo Drunken Master under Al Capone.
- Sonic Adventure introduces us to a character actually named "Big the Cat."
- And on the subject of well-known felinoid Science Fiction aliens, of course we can't forget the Kilrathi from Wing Commander, who form the opposition for the player's side (or in a few cases, they're on the players' side) in many of the games from that series.
- Persian, Espeon, Delcatty, Liepard, and a whole bunch of other leopard-sized kitties from Pokémon.
- Dark Souls features a large talking cat (roughly the size of a grizzly bear) named Alvina, who is also one of the game's covenant leaders. The game also features enemies called Great Felines, who are a fair bit bigger than Alvina.
- Longcat is looooooooooooooooooooooooooooooooong!
- "Second Wind". A man and a giant cat end up in a story about life & death http://www.youtube.com/watch?v=erUMp1WZ6l4&feature=related
- Ambassador Rythax of the Whateley Universe. When Gateway first summons him, he's like a black panther the size of a tiger. With wings. He can be other sizes.
- In at least one episode of Garfield and Friends, Garfield becomes super-sized in an Attack of the 50-Foot Whatever plotline. (Some would argue that normal Garfield is a Mega Neko already.)
- The regular comics already played on this. One comic cover shows him blotting out the sun, and in one long cartoon, he dreams he becomes large enough to eat Saturnus!
- The Captain Star episode "Waiting for Sputnik" features a cat that grows so big it endangers the planet.
- The web series (and soon to be Nickelodeon series) Making Fiends features a ginormous red cat as one of the titular "fiends".
- One of the costars in this short [dead link]. The giant kitty is both adorable and terrifying when appropriate.
- See Tex Avery's classic King Size Canary.
- Super Kitty in the Fairly Oddparents.
- Kitty Katswell from Tuff Puppy
- Pete from the Classic Disney Shorts.
- PJ from Goof Troop.
- Fat Cat from Chip 'n Dale Rescue Rangers towers over his cat henchmen, as well as the other feline characters.
- While not as huge as some of the fictional examples, Savannah Cats are pretty big as far as pet cats go.
- The Maine Coon breed is generally considered to be the largest domestic cat breed, with some weighing in at over 25 pounds and 4 feet in length.
- Ligers are so huge that they are even taller than humans when they stand up. This pic speaks it.