[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/Kappa_water_imp_1836.jpg]]

Kappa is a [[GratuitousGreek Greek letter]]. But this article isn't about that kind of kappa.

There are ''thousands'' of {{Youkai}} in Japanese mythology... but one of them is ''far'' more popular with the public than the others. The Kappa is a river-dwelling creature of Japanese folklore. It is often depicted in {{Anime}} and modern media as an anthropomorphic turtle with a domed head, parrot-like beak, and a ring of spikes sticking out from its head.

In Japanese myth, the kappa is a river-dwelling spirit who likes to eat human entrails and blood. It has a deep depression in its head that is full of water, which is the source of its power. That bowl is surrounded by scraggly hair (transformed into the "spikes" of the modern incarnations by the AnimeHair phenomenon). Those confronted with imminent devouring by a Kappa are advised to take two courses of action: The first, and most preferable, is to give the kappa a cucumber inscribed with one's name. The cucumber is the TrademarkFavoriteFood of the kappa, and a kappa so bribed will spare the giver. It may even befriend the human for the [[TastesLikeFriendship tasty gift.]] The other action: Bow to the kappa. [[JapanesePoliteness Kappa are extremely polite, and will always bow too.]] Bowing will cause the water to fall out of their bowl, weakening them and allowing you to escape. (Don't bother trying to fight them, as they ''love'' sumo wrestling.)

In modern times, kappa have undergone a bit of {{Disneyfication}} that {{bowdlerize}}s most everything except their appearance and love of cucumbers. In Japan, kappas endure a surprising popularity that leads to them popping up in a lot of Japanese works. Even those that aren't explicitly mythological like to throw in a kappa or two. While they haven't reached the same level of popularity in the West, PopculturalOsmosis and the recent popularity of anime means that Western works sometimes feature a kappa or two.

There are many different regional names for the kappa, and appearance varies considerably between regions as well. One particularly unusual kind of kappa is the hyosube, which is covered in hair. The third disciple of Tripitaka, Sa Gojyo, in ''JourneyToTheWest'' is often represented as a kappa, though the actual tales depict him more as a river-dwelling oni.

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!!Examples:

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[[folder:Anime & Manga]]
* ''Anime/SummerDaysWithCoo'' tells a story of a boy who befriends a kappa.
* Like most other types of yōkai, kappa turn up occasionally in ''{{Inuyasha}}'':
** Kagome's grandfather presents her with "the mummified hand of a kappa" as a birthday gift. Kagome, unimpressed, gives it to her cat before her grandfather can finish explaining the significance.
** When Kagome saves a boy from drowning early in the series, a villager impressed by her swimming skills takes it to mean she's a kappa.
** And an actual living kappa appears as a servant of Chokyukai the boar demon as part of a parody of the ''JourneyToTheWest''. The kappa looks roughly like a turtle that walks upright, and is introduced as Sa Gojyo, but has no lines and doesn't otherwise follow any of the traditional folklore associated with kappa.
** Inu Yasha once tried to get information from some kappa, but they turned out to be almost TooDumbToLive.
* Karasuma from ''SchoolRumble'' once dressed up as a kappa. It's also a pun, since "kappa" is slang for "rain coat" (which is the ''exact'' function of said costume, complete with leaf-shaped umbrella). He even once lent said costume to Tenma once when she was stranded in a bus stop due to heavy rain.
** Tenma mistakes Harima for a kappa after he saved her cat from drowning.
* In one episode of ''PaniPoniDash'', the classes went camping and discovered some kappa building a rocket.
* In "Pia Lamp," a side story of the ''Emyulamp'' manga, Piari, a young witch-in-training, hears that in order to pass an upcoming test, all familiars have to speak human-language. So she takes her cat to drink from a spring that will grant him human speech, only to find it guarded by a kappa, who looks mostly like a bishounen with spotted skin who attacks people using the plate on his head.
* Kappa occasionally appear in anime as a MonsterOfTheWeek. Examples can be found in ''BlueSeed'' and ''TokyoMewMew''.
* ''Manga/NatsumesBookOfFriends'' and its sequels - anytime Natsume is near a body of water he's likely to find a kappa who's lost the water from its bowl.
* A kappa called Kappaeru is one of Enma's sidekicks in ''Dororon Enma-kun Meerameera''. The name "erogappa" indicates he's a bit of a lech.
* The Mayor in ''ArakawaUnderTheBridge'' is one - NO, FOR THE LAST TIME HE ISN'T JUST SOME MAN IN A ILL-FITTING RUBBER SUIT!
* Sha Gojyo in ''Manga/{{Saiyuki}}'' is supposedly one - Goku has been known to shout "Erogappa!" ('pervy kappa') at him in arguments. This is probably just a nod to the character in the original ''JourneyToTheWest'' which ''Saiyuki'' was based on, since Gojyo has nothing in common with kappas in terms of looks nor behavior. (Since it's canon that Gojyo's father was a youkai, it was long assumed that he must have specifically been a kappa and that explained the nicknames; but this has been disavowed by WordOfGod.)
* In one episode of ''AxisPowersHetalia'', a kappa appears to England and laments how so few people believe in him nowadays.
* The Ludicolo family from ''{{Pokemon}}''. It was originally found in only Sapphire version, while its [[OneGameForThePriceOfTwo Ruby counterpart]] was Shiftry, a {{Tengu}}. Golduck is stated to be like one, [[AllThereInTheManual in its PokÚdex entries]].
* One of ''DetectiveConan''[='s=] mysteries featured a giant, murderous kappa [[spoiler: it's just a guy whose hat, raincoat, and backpack made him look like one in the dark. He's not the killer]].
* In ''{{Yaiba}}'' the Orb of Darkness is inhabitated by two kappa. The first one, Kerokichi is a small, kind and nerdy ButtMonkey who provides expositions and wants someone to play with. His brother Kerosuke is apparently the son of a kappa and Godzilla. Not only is he huge and breathes fire, but he's amazingly strong. Besides that his typical bald head is really hard.
* ''{{Karas}}''' first episode pits the titular protagonist against a gigantic cyborg kappa capable of summoning the spirits of its many victims to aid it in battle. And no, cucumber bribes are ''not'' a deterrent, as a gimmicky TV crew finds out the hard way.
* ''PuniPuniPoemi'' has a blink-and-you'll-miss-it appearance by a kappa as the thief of Poemi's scooter. He shows up a few minutes later sporting a banner that reads "Water Sprites Are #1!"
* ''Kappa no kaitaka'' tells the story of a man who tries to raise one as a pet.
* ''NagasareteAirantou'' has Tohno. The cute, cartoonish variety. Her presence never fails to point out the gaps in the main character's WeirdnessCensor.
* Two Keronians in ''KeroroGunsou'' are mistaken for Kappa - Dororo, when he is found stuck in a boar-trap, [[spoiler:and an early Keronian soldier, who befriended Omiyo the Ghost Girl nearly a hundred years ago.]]
* [[Anime/DigimonSavers Gawappamon and Shawujingmon]] from ''Franchise/{{Digimon}}'', as well as Shawujingmon's {{Expy}}, Sagomon.
* One is found in ''NurarihyonNoMago''. As part of the main characters, it displays the power to create links between water bodies transporting between lakes.
** The Nura clan's Kappa is not the only one. The second arc introduces the youkai of Tohno which includes the swamp kappa Amezou and the village leader Aka-gappa (literally Red Kappa) who is of a third, unspecified type of Kappa.
* In ''Kappa No Kaikata'' the protagonist tries to raise a pet kappa.
* In ''{{Inukami}}'' episode 14, Keita gives a cucumber to a kappa, asking it to return the favor -- right now, if possible.
* An episode of ''CrayonShinChan'' has Shin's friends arguing whether the kappa is real or not, while they're standing by a body of water. Boo ends up dressing up like a kappa at one point.
* An episode of the ''UruseiYatsura'' anime has Ataru being taken down to a Ryugujo inhabited entirely by kappa.
* In ''Manga/{{Gintama}}'', an Amanto lives in a lake which [[IWillWaitForYou he refuses to leave]] until a promise to teach an IllGirl to swim once she gets better is kept.
* One of the first creatures encountered by HellTeacherNube is a kappa. (In the author's notes, he posits that the myth may have been inspired by Jesuit priests, who have a similar hairstyle and a penchant for "drowning" people via baptism).
* In the new ''PetShopOfHorrors'', one episode revolves around D looking for kappas.
* ''Manga/NamiuchigiwaNoMuromisan'''s title character is friends with a very large, muscular kappa named Kawabata-san, and she spends an episode trying to coax him and Takurou into becoming friends; Takurou is terrified at first of having his [[SoulJar butt ball]] removed.
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[[folder:Comic Books]]
* An early issue of ''UsagiYojimbo'' featured a story called simply "Kappa" , which referenced most of the distinct aspects of the legend.
* A [[MisplacedWildlife very strange variation]] in the French comic ''Papyrus'', set in AncientEgypt. The hero encounters aggressive desert-dwelling creatures with bowl shaped heads. When bowed to, they respond in kind, the liquid spills out, and they lose their aggressiveness (and intelligence and ability to speak). Turns out they were under a curse from Sobek, which is lifted from them in the end. Not once is their similarity to kappas explained or mentioned.
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[[folder:Film]]
* ''Sakuya Yōkaiden'' (live action) has the heroine raise a kappa's child after killing one. The one she kills looks like a normal kappa and the child is a human with a plate on the top of his head.
* A kappa is one of the star characters in ''Film/TheGreatYokaiWar''. It's played for a lot of comic relief, and complains that ugly youkai deserve as much love as beautiful or cute ones.
* Creator/AkiraKurosawa[='s=] ''Rhapsody In August'' has a grandmother who claims her slightly touched-in-the-head brother swore he saw a kappa at the waterfall by their house. That night, a kappa makes mischief [[spoiler: it's just the boys using green paint and leaves to scare the girls]].
* The Film/TeenageMutantNinjaTurtles are mistaken for these in the third movie, where they are transported to Feudal Japan by means of a magical scepter. Which makes sense since, as is mentioned above, the most basic description of the common kappa is fundamentally a humanoid turtle.
* The kappa movie to end all kappa movies has ''got'' to be Tomo'o Haraguchi's ''Death Kappa'', in which the title character begins the film as the friendly guardian of a village shrine, befriends a a girl who becomes a national singing star, runs afoul of Nazi super-science baddies and ends up as a Godzilla-sized rampaging monster [[spoiler: who can only be tamed by the village girl singing his favorite tune]].
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[[folder:Literature]]
* A Japanese novel called ''[[http://www.complete-review.com/reviews/akutagawa/kappa.htm Kappa]]'' by Akutagawa Ryūnosuke features a man who, [[Literature/GulliversTravels Gulliver-like]], finds himself in the kappas' pythonesque world. Some of the weird things in kappa culture include the females' ardent pursuit of males and having to convince babies to be born into this corrupt world, and they're already intelligent enough to make a convincing argument why it's better not being born (the author admitted this novel was [[CreatorBreakdown "born in a very dark place"]]).
* Kappa were among the monsters introduced in Lupin's Defense Against the Dark Arts class in ''Literature/HarryPotterAndThePrisonerOfAzkaban'', and they're described as looking rather like scaly monkeys with webbed hands. Snape later tests them on this knowledge as a substitute and inaccurately states that they're native to Mongolia, but their entry in the spin-off book ''Fantastic Beasts and Where to Find Them'', correctly identifies it as Japanese, followed by Ron's sidenote remarking that Snape never really bothered to read the book.
* In Hiromi Goto's magical-realism novel ''The Kappa Child'', a girl believes that she's been impregnated by a kappa. It gives her, among other things, some strange dreams and a tremendous craving for Japanese cucumbers.
* Sunny Seki's ''The Last Kappa of Old Japan'' has a little boy befriending a young kappa which years later returns the favor by saving his little daughter from drowning. It's also got an environmental message that would do Miyazaki proud.
* ''[[FightingFantasy Sword of the Samurai]]'' has a few kappa encountered as enemies on one route. They can be easily defeated by knocking them off balance, causing the water on their heads to fall out.
* The usual Japanese interpretation of the character of Sha Wujing (though they call him Sa Gojyo) from ''JourneyToTheWest'' is that he's a kappa, or at least something very similar to one.
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[[folder:Live Action TV]]
* In the 1970s Japanese live-action TV series adaptation of ''{{Journey to the West}}'', the river monster Sa Gojō was depicted with kappa-like traits (domed head, etc.).
* One showed up as the [[MonsterOfTheWeek problem fae of the episode]] in ''Series/LostGirl''.
* The AnimalPlanet series ''RiverMonsters'' presents the theory that the legend of the Kappa originated from the [[http://en.wikipedia.org/wiki/Japanese_Giant_Salamander Japanese Giant Salamander]], one of the largest amphibians in the world capable of easily growing to the size and weight of an average 12 year old boy. The animal has strong clenching jaws and a bite like a snapping turtle, with more than enough strength to grab a small child by the leg and drag them under -- or, if the size difference is in the salamander's favor, just skip to its usual hunting tactic and [[SwallowedWhole inhale them whole]]. Japanese parents had good reason to tell their kids they might get eaten if they go down to a river by themselves, sort of like how stories of [[YowiesAndBunyipsAndDropBearsOhMy Drop Bears]] may have been started to keep Australian children out from under eucalyptus or gum trees.
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[[folder:Tabletop Games]]
* Kappa appear as monsters in the 1st Edition ''DungeonsAndDragons'' supplement ''Oriental Adventures'', and a number of adventures in the setting included them as opponents.
* There's a ''MagicTheGathering'' card titled "[[http://gatherer.wizards.com/pages/card/Details.aspx?multiverseid=75278 Shell of the Last Kappa]]".
** The akki are also based on kappa.
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[[folder:Video Games]]
* Kapp'n from ''VideoGame/AnimalCrossing'' is a kappa. While CulturalTranslation dubs him a turtle, his love of cucumbers makes it obvious what he ''really'' is. His name is also an obvious pun.
* ''MagiciansQuestMysteriousTimes'' has one sidequest where you befriend a kappa. No bowing or cucumbers necessary--he wants to go on a tour of your school.
* Being [[BalefulPolymorph transformed into one]] is a StandardStatusEffect in ''VideoGame/FinalFantasyVI''. It got [[CulturalTranslation Americanized]] into "Imp".
* ''VideoGame/HarvestMoon: Friends of Mineral Town'' has a kappa who lives in the lake. If you throw in several Cucumbers, he'll give you an item that lets you work in the rain. In the girl version, you can marry him.
** A good number of HM's have Kappas.
* There's an enemy based on the Kappa in the ''VideoGame/{{Kirby}}'' games. It throws its ring of spikes at you.
* The ''VideoGame/GanbareGoemon'' series used these as frequent enemies in Goemons Great Adventure, often they were the GoddamnBats.
* ''VideoGame/SakuraSamurai'', being set in a glorified feudal Japan, naturally features a couple kappa NPC's.
* The Koopas from the ''SuperMarioBros'' series are somewhat based on kappas.
** In ''VideoGame/SuperMarioBros3'', the World 3 king is a kappa when transformed. Fitting, considering [[UnderTheSea the world's theme]].
* Disney-produced game ''{{Spectrobes}}'' has a monster based on the kappa. It makes the spikes ''literal,'' not just an artistic represensation of hair.
* The {{Pokemon}} Golduck is based on the kappa. As are Lotad, Lombre and Ludicolo. The Lotad line even has an ability called Rain Dish which is a reference to the Kappa's ability to draw power from water pooled on its head.
* The videogame ''[[VideoGame/SengokuSNK Sengoku]]'' has Kappa as enemies.
* There are some kappa in the game ''KatamariDamacy''.
* ''VideoGame/{{Touhou}}'' kappa are a bit different, basically being an entire civilization of aquatic {{mad scientist}}s. They do have the ability to control water, but generally aren't terribly adept at magic, and the only named kappa character is known more for her missiles and cloaking device. As per usual for the series, they're depicted as {{Cute Monster Girl}}s whose only turtle-y characteristic are overstuffed green backpacks evocative of shells. How friendly they are to humans depends on which canon sources you focus on.
* The first ''StarGladiator'' game has a secret fighter called Kappah Nosuke - and yes, he is exactly what his name suggests, except he's an alien, not a mythological creature.
* Kappa are an early enemy in the MMORPG ''LaTale''. Like nearly all the enemies in the game, they are almost unbearably cute.
* Kappa appears as an enemy in ''VideoGame/JackieChansActionKungFu''.
* Appear as enemy spell-casters in ''GuildWars: Factions''.
* These appear in water based environments of ''MuramasaTheDemonBlade''. If the battle wears on too long, they will dry out and become inactive.
* Appears as a unit of the Sanctuary faction in ''HeroesOfMightAndMagic VI''. They're surprisingly lethal compared to their usual portrayal in media, which is lampshaded slightly by the unit's description. They also seem to be based more on toads than turtles, able to make huge leaps across the battlefield.
* In ''SengokuRance'', the BigBad is a demonic fire kappa.
* The fighting game ''Shogun Warrior'' and it's sequel ''VideoGame/BloodWarrior'' have a kappa named Senpei as a playable character (though in ''Shogun'', he's nameless).
* The first ''ShadowHearts'' has kappa as enemies. It notes their hunger for human flesh, a characteristic often absent from modern works.
* The final unlockable Rhythm Toy in ''VideoGame/RhythmHeaven'' is a Kappa with a vinyl record on its head. A kappa also appears in one of ''Rhythm Heaven Fever's'' endless minigames, "Kung-Fu Ball."
* In ''Cloud Master'', the Round 2 boss is a kappa that shoots lightning from a forked rod.
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[[folder:Web Original]]
* [[http://www.youtube.com/watch?v=zDDtv9g7u1g This]] ''VideoGame/{{Touhou}}'' fan video (Spanish sub [[http://www.youtube.com/watch?v=ToVBPePYzTI here]]) has a cute, [[VillainDecay chibified]] kappa as featured in the games. ''[[http://www.youtube.com/watch?v=hzmBFT4dt1A This]]'' fan video is something more traditional... and frightening.
* ''PetSociety'' has a few Kappa-related items - a poster with small amount of info on Kappa, a Kappa plushie, and a Kappa mask.
* Nini from ''Webcomic/ManalaNextDoor'' is a [[CuteMonsterGirl Cute Kappa Girl]].
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[[folder:Western Animation]]
* ''WesternAnimation/KappaMikey'' not only takes its name from the creature, but it's also a pun on ''kappamaki,'' a type of sushi. Kappa also appear in one episode of the show. They ''loved'' Kappa Mikey- [[LovesMyAlterEgo they just didn't care for the man under the costume.]]
* The Franchise/TeenageMutantNinjaTurtles tend to be confused with Kappa whenever they visit Japan. [[WesternAnimation/TeenageMutantNinjaTurtles2003 The second animated series]] also featured turtle-like demons identified as kappa, despite the lack of water-filled depressions.
* In ''HellboyAnimated: Sword of Storms'' Hellboy fights a Kappa that has been preying on a nearby village. A villager who had been bribing the kappa with cucumbers tells Hellboy to beat the Kappa by spilling its water. Before that, the villager also asks Hellboy's name so he can write it on a cucumber to save him.
* Two kappas show up in one episode of ''{{WesternAnimation/Arthur}}''.
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