In Super Smash Bros. Melee, Agility is Pichu's recovery move that is performed by pressing Up in combination with the B button. It will cause Pichu to teleport a short distance in the direction the player pressed the joystick. After the first teleport, they can quickly move the joystick in another joystick and Pichu will go in that direction. Both teleports will deal damage to Pichu - the first 1% and the second 3%. The move is very similar to Pikachu's Quick Attack move, which does not deal damage to the user but rather to the opposing force if they're caught in the middle of it, whereas Pichu's attack doesn't deliver damage when in the same situation.
In Pokkén Tournament
Agility can be used by Weavile in Pokkén Tournament by pressing the A button without moving the joystick or pressing any of the buttons on the D-pad.