# Greninja

Greninja (ゲッコウガ, Gekkōga, /ɡrɛˈnɪndʒə/ greh-NIN-jə) is a Pokémon species in Nintendo and Game Freak's Pokémon franchise, introduced in Pokémon X and Pokémon Y, that has since appeared across a wide variety of Pokémon media. It is the final evolution of Froakie, the Water-type starter Pokémon of X and Y, with either the ability 'Torrent' or 'Protean', with 'Battle Bond' as an event ability, enabling it to become Ash-Greninja, and the immediate evolution of Frogadier. Ash-Greninja has increased speed. Categorized as the "Ninja Pokémon", Greninja is a Water- and Dark-type Pokémon who is a frog-like master of swiftness and stealth.
It appeared prominently in the XYZ series of the Pokémon anime as one of Ash Ketchum's primary Pokémon, voiced by Yūji Ueda. This Greninja used its bond Phenomenon with Ash to transform into a unique and powerful form, Ash-Greninja, which was later released to the games as an empowered form of Greninja accessible to players of the Pokémon Sun and Moon Special Demo Version. Greninja was introduced as a playable fighter to the Super Smash Bros. franchise with Super Smash Bros. for Nintendo 3DS and Wii U as one of the Pokémon series' five representatives, and was integrated into manga such as Pokémon Adventures. Greninja also appeared in Super Smash Bros. Ultimate on the Nintendo Switch. Greninja has been met with a very positive reception, quickly becoming one of the most popular Pokémon of the sixth generation, and of all time in the 2020 vote with 140559 votes, because of its endearing design and strength in competitive play. Despite this, Greninja was not made available in or transferable to any Generation VIII Pokémon main series video games until the Generation IX Pokémon main series video games, Pokémon Scarlet and Violet. However, Greninja's return received a more polarizing response, due to the alterations made to the ability Protean, as well as its special ability Battle Bond, which can no longer change Greninja into its Ash-Greninja form. Its popularity has resulted in its integration into various merchandising and promotions of the Pokémon franchise.

## Concept and characteristics

Greninja is a fictional species of Pokémon created for the Pokémon franchise. Developed by Game Freak and published by Nintendo, the series began in Japan in 1996 with the release of the video games Pokémon Red and Blue for the Game Boy. In these games, the player assumes the role of a Pokémon Trainer whose goal is to capture and train creatures called Pokémon. Players use the creatures' special abilities to combat other Pokémon, and some can transform into stronger species through a process called evolution. A major goal in each game is to complete the Pokédex, a comprehensive Pokémon encyclopedia, by capturing, evolving, and trading to obtain individuals from all Pokémon species.
Greninja is a streamlined frog-like creature with dark blue skin and a beige underbelly, with long limbs and thin, slender physique particularly reminiscent of tree frogs. What resembles a pink scarf is actually its prehensile tongue wrapped around its head. Two long, ear-like protrusions extend from both sides of its head and connect with a smaller horn-like structure in the middle by azure blue-colored webbing. Spots of the same azure coloring can be found on each thigh, arguably resembling ninja stars or battle scars along with a stubby tail that wraps inwards. Much like a frog, Greninja has webbed feet, wall-clinging suction cups on each digit, and powerful hind legs. It shoots streams of compressed water patterns from its palms. A large bubble can be found on each limb. A bipedal creature, Greninja can comfortably stand on its hind legs, but leans on one of its front limbs in a crouching stance when in battle. When at rest its eyes are white with hyphen-shaped pupils, but when engaged they gain red, oval-shapes irises, white pupils, and a narrow gaze. It stands at 4' 11" (1.5 m) and weighs 88.2 lbs. (40 kg).
It shares a motif of role-playing game classes with its Grass-type (Chesnaught) and Fire-type (Delphox) counterparts; while the former resemble a knight and witch respectively, Greninja draws heavy inspiration from the ninja. In Japan, frogs and toads have long been associated with ninjutsu through the folk story "The Tale of the Gallant Jiraiya" (児雷也豪傑物語 Jiraiya Gōketsu Monogatari), a story about a ninja who can shapeshift into a large toad.
Greninja is able to move with "a ninja's grace", and has a design and set of abilities associated with Ninjutsu. Among its attacks are the formerly exclusive Water Shuriken, which lets it quickly fire throwing stars made from compressed water, Shadow Sneak, and Double Team. It is also the only Pokémon to learn Mat Block, which shields the user's side with a flipped-up mat. The Protean ability, which lets the user camouflage to the type of the attack it uses, is exclusive to Greninja and the chameleon Pokémon Kecleon (as well as the former's pre-evolutions). Capable of vanishing and reappearing quickly, it enjoys toying with enemies in such a manner. It is very adaptable, learning many moves such as Bounce, Extrasensory, and Low Kick from different types.
Greninja's stealth and swiftness are unique among Water-type starters, contrasting with previous designs like Blastoise and Swampert. It shoots jets of compressed water from its hands, as opposed to many other Water-types that shoot water from their mouths. It was created by Yusuke Ohmura, who designed the Water-type starters of the previous two generations as well as the mascot creatures for X and Y, Xerneas and Yveltal. Greninja's design was finalized by Ken Sugimori, Game Freak's art director.
As Pokémon X and Y take place in Kalos, a fictional region inspired by France, Greninja's name combines the French word for frog (grenouille) and "ninja". It is used for the English, Spanish, and Italian localizations of X and Y. In the French localization, Greninja is known as "Amphinobi", combining the French word for amphibian (amphibie) and "shinobi". Its Japanese name is "Gekkouga", combining the Japanese word for croak (げこっ geko) and the Koga ninjutsu school (甲賀流 Kōga ryū).

## Appearances
### In video games
#### Pokémon game series

Greninja debuted in Pokémon X and Y, which was released internationally on October 12, 2013, for the Nintendo 3DS. As is the case for most Pokémon evolved from starters, Greninja is rare except for choosing Froakie at the game's beginning and fully training it. It can only be obtained otherwise by evolving a Friend Safari Frogadier, by fully evolving the Froakie named "Froabble" in-game rival Shauna trades to the player after the game's completion, if Fennekin was the chosen starter, or through trading with another player. It can be transferred to Omega Ruby and Alpha Sapphire through trade, or into Sun and Moon and Ultra Sun and Ultra Moon through the online storage system Pokémon Bank. Though very rare, Greninja has a Shiny variant obtainable in the games that is jet black with a red tongue.
Greninja has been incorporated in spin-off Pokémon games as well. In the action game Pokémon Rumble World, Greninja is the back boss of Dewdrop Bay's Castle Moat, and can be recruited as a playable character. It is the boss of Area 03's fifth stage in Pokémon Picross, of Renegade Meadow in puzzle game Pokémon Battle Trozei, and of Expert Stage 24 in Pokémon Shuffle. Through evolving the player character of Froakie, Greninja is playable in Pokémon Super Mystery Dungeon, and is even included on the game's box art. It also appeared in Pokémon Go, being added alongside the other Kalosian Starters in December 2020. In Pokémon UNITE, it is a playable character.

#### Other Nintendo games

Outside of the Pokémon series, Greninja also appears in Nintendo's Super Smash Bros. series. Greninja was included as a new fighter in Super Smash Bros. for Nintendo 3DS and Wii U in 2014, returning in Super Smash Bros. Ultimate in 2018. Greninja's inclusion was revealed during the Super Smash Bros. Direct on April 8, 2014, alongside returning characters Zero Suit Samus, Sheik, Yoshi, and fellow Pokémon Charizard. The game's director, Masahiro Sakurai, stated that he decided to include finishing development, and he working very closely with Game Freak's conceptual illustrations and making his own interpretations of the character. Its characteristics in the Pokémon games are reflected in Smash, being an agile fighter with ninja-like stealth capable of attacking opponents with water from its palms. Its final smash, Secret Ninja Attack, incorporates Greninja's signature move Mat Block. Its home stages include Prism Tower, the Pokémon Gym of Kalos' capital city on the 3DS version, and Kalos Pokémon League on the Wii U version. Ultimate granted Greninja its anime debuted Battle Bond form, “Ash-Greninja” as part of its Final Smash move, confirming the playable Greninja in this game series as a male.
In Super Mario Maker, by scanning a Greninja amiibo, the player can unlock a Mystery Mushroom for Greninja that can be used in the player's customizable levels. When Mario makes contact with the Mushroom, he takes on Greninja's likeness and animations until he finishes the level, makes contact with an enemy, or loses a life. Greninja has the same sound bits as Mario, instead of those from Pokémon games; this is also true for Pikachu, Charizard, Jigglypuff, Mewtwo and Lucario but not for Bulbasaur, Charmander or Squirtle.

### In the anime

Multiple Greninja have made appearances in the XY series of the Pokémon anime. While the Pokémon was first alluded to in the episode "A Rush of Ninja Wisdom!", it made its formal debut in the 17th Pokémon movie, Diancie and the Cocoon of Destruction, under the ownership of a thieving ninja named Riot. Ippei and Sanpei, two recurring characters in the anime, both have a Greninja. They both chose Froakie as their starter in tribute to a folkloric Greninja that saved their home village. Series protagonist Ash Ketchum's Greninja is the most prominent; he first appeared as a Froakie in the first episode "Kalos, Where Dreams and Adventures Begin!", was caught by Ash in the following episode "Lumiose City Pursuit!", and evolved from Frogadier into Greninja in episode seven of XYZ, "A Festival of Decisions!". Uniquely, Greninja and Ash are able to temporarily link their consciousnesses during battle. When such an exchange occurs, the former physically morphs to somewhat resemble Ash, a form called "Ash-Greninja". In episode 46 of the XYZ season, "Facing the Needs of the Many!", Ash released Greninja in order to assist Zygarde and Squishy in destroying some of the remaining roots of the Giant Rock, which threatened to destroy Kalos and the whole world. Someday Ash's Greninja will rejoin Ash in the future after all of the remaining roots of the giant rock are all destroyed. Ash's Greninja returned in Journeys after a long absence and reunites with Ash, where it teaches Ash and his Mega Lucario new moves and how to boost up its aura powers.

### In live-action films

A band of Greninja appears in the live-action film Pokémon Detective Pikachu, but as minor antagonists working as hired guns for Clifford Enterprises against Tim Goodman, Harry Goodman as Detective Pikachu, and Lucy Stevens. Lucy's Psyduck manages to defeat them by using its full power. The Greninja had been stolen and brainwashed victims of illegal experimentation by the mastermind Howard Clifford.

### Other media

Since its introduction, Greninja has regularly been featured in Pokémon merchandise. In the Pokémon Trading Card Game, Greninja-EX is one of the flagship cards associated with the Kalos Power Tin set and in promotion for BREAKpoint Wave Slasher Theme Deck. Ash-Greninja has also been incorporated into the trading card game and lineup of plushies. Key chains, soft toys, and figures of the Pokémon are all available on the online Pokémon Center store as well as in local toy store chains. Greninja was introduced among the fourth wave of amiibo, Nintendo's lineup of collectible toys-to-life figures. The figure is based on its appearance in Super Smash Bros. and is compatible with many different video games for the Wii U, Nintendo 3DS, and Nintendo Switch. Initially released on April 3, 2015, as a Toys "R" Us exclusive, Greninja proved to be so desirable that the figure sold out within just 30 minutes.

## Reception

Greninja is one of the most popular Pokémon introduced in X and Y, and was praised for its design upon reveal. A 2016 poll by The Pokémon Company ranked Greninja as the most popular Pokémon species in Japan. Greninja was also voted the 2020 “Pokémon of the Year” by fans in a survey conducted by Google and The Pokémon Company. Michael Derosa of Screen Rant called Greninja one of the most popular Pokémon in the entire series, while Mic author Alex Borkowski described Ash-Greninja as "stylish." Kevin Slackie of Paste listed Greninja as the 9th best Pokémon. Dale Bishir of IGN considered Greninja as the most influential Pokémon in the franchise's history, and stated that it became one of the most beloved Pokémon of all time, earning a spot in Super Smash Bros. and a unique transformation akin to Super Saiyan. Steven Bogos of The Escapist ranked Greninja as the 30th of his favorite Pokémon, and said that it was probably the most popular starter from X and Y. He also noted that it made its way into Super Smash Bros. 4. International Business Times cited Greninja as an example of excellent Pokémon design in Pokémon X and Y.
Greninja's inclusion in Super Smash Bros. received mostly positive feedback, with many online reviewers appreciating the character's uniqueness and being genuinely surprised by its announcement. Gavin Jasper of Den of Geek ranked Greninja as the 27th of Super Smash Bros. Ultimate characters, and complimented its design as suitable for such an “outrageous” game. Jeremy Parish of Polygon ranked 73 fighters from Super Smash Bros. Ultimate "from garbage to glorious", listing Greninja as the 35th, stating that a frog ninja is a pretty heady character concept. In 2014, Ben Reeves of Game Informer claimed that Greninja was easily the best new Super Smash Bros. character. Greninja's appearance in the Detective Pikachu film also received acclaim for staying faithful to its ninja-like portrayal in the video games and anime, though some reviewers found its tongue scarf "disgusting" when rendered in CGI.

## Merchandise

In 2015, an Amiibo of Greninja was made available at Toys 'R Us, Ash-Greninja figure and a plush of it was released during Pokémon's 25th anniversary.