Pikachu is a yellow mouse Pokémon from the fictional Pokémon world that was created by Satoshi Tajiri. It is 0.4 m tall and it weighs 6.0 kg. The skin color is yellow with brown markings covering the lower portion of its back. Female Pikachu has a heart-shaped tail. It can attack using electricity which comes from two red pouches (called "Denkibukuro") on its cheeks. It can evolve into Raichu, which is bigger and stronger. A minuscule and frail Pokémon called Pichu can evolve into Pikachu. Pikachu appears in most Pokémon games in some way.