Greninja

Greninja is a Water/Dark-type Pokémon from the Pokémon series that evolves from a Frogadier at level 36. It is the final form of Froakie. It is a newcomer playable fighter in Super Smash Bros. for Nintendo 3DS / Wii U. It originates from Pokémon X and Pokémon Y. Reflecting on its naturally high speed in these games, Greninja's attacks and movements in Super Smash Bros. for Nintendo 3DS / Wii U are agile.

Super Smash Bros. for Nintendo 3DS / Wii U
Greninja is features as a playable character in both Super Smash Bros. for Nintendo 3DS and Super Smash Bros. for Wii U. During development, Masahiro Sakurai had already determined that a new Pokémon would be included as a playable character, and chose Greninja based on concept drawings, before Pokémon X and Y were released.

Most of Greninja's attacks involve jabs, kicks, and close-range water attacks. Its special moves are all based upon moves in the Pokémon series that it can learn. Its neutral special move is Water Shuriken, one of its signature moves. Its side special is Shadow Sneak, its up special is Hydro Pump, and its down special is Substitute. Greninja's Final Smash is Secret Ninja Attack.

Super Smash Bros. Ultimate
Greninja is set to appear in Super Smash Bros. Ultimate.

Super Mario Maker
By tapping the Greninja amiibo to the Wii U gamepad in Super Mario Maker, the player unlocks a Mystery Mushroom that gives Mario a costume based on Greninja.

Super Smash Bros. for Nintendo 3DS / Wii U
Red indicates exclusive to the Nintendo 3DS version. Blue indicates exclusive to the Wii U version.

Palutena's Guidance

 * Pit: What is that? Some kind of ninja frog?
 * Palutena: That's the Pokémon Greninja. Its strengths are agility and speed. What looks like a scarf is actually its tongue.
 * Viridi: As a defensive measure, I suggest rubbing spicy peppers all over yourself.
 * Pit: How can Greninja taste anything with its tongue hanging out like that?
 * Palutena: It could be one of those rare ninjas that just eats very slowly.
 * Pit: What?! But that just makes no sense! ...Anyway, just tell me how to win!
 * Palutena: Greninja creates throwing stars out of compressed water and unleashes them at high speed. This attack is called Water Shuriken. If Greninja starts to charge its Water Shuriken, be prepared to reflect it back!

amiibo

 * This Water- and Dark-type Pokémon is the fully evolved form of Froakie. It’s just as fast and dangerous as any other ninja, and the throwing stars it can make out of water can shear metal. When it spins the stars and throws them at high speed, they can split metal in two.