In the GameCube video game Super Smash Bros. Melee, Pichu was a secret character. It was one of the many different "clones" of preexisting characters, with this particular characters' moves being based on Pikachu's. A major downside of the character was the fact that a multitude of his attacks, including his special and smash attacks, not only would deliver damage to the opponent to also Pichu itself. Though minimal, it was a major distraction that didn't attract many players. He was, along with a few others, removed from the Wii sequel Super Smash Bros. Brawl, though he was featured as one of the game's trophies.
"A Tiny Mouse Pokémon identifiable by its big ears, Pichu evolves into Pikachu. It's not very skilled at storing up electrical energy and will sometimes discharge it if jarred. Although it's small, it has enough electrical power to give even an adult quite a shock. It's often startled by its own power."
Super Smash Bros. Melee[blue]
"Pichu is the lightest character in Super Smash Bros. Melee, and it's top of the class in weakness, too! For Pichu, it's all about scampering here and there to pick up items that will help it survive. The first warp in Agility causes 1 point of damage to Pichu, and the second causes 3, so try to limit the number of times you use the move."
Super Smash Bros. Brawl
"A Tiny Mouse Pokémon. Because its electric cheek pouches are still small, it cannot store electricity yet. Pichu has been known to flaunt its courage by touching tails with others and setting off sparks. It is easier for Pichu to build up electricity when the humidity is lower. Pichu will evolve into Pikachu."