Who designed the original Pikachu species for the Pokémon video games?

Atsuko Nishida designed the original Pikachu species for the Pokémon video games.

Nishida worked at Game Freak during the development of the first Pokémon games. She was asked to create a cute Electric-type Pokémon that would evolve twice and eventually have a stronger final form. Her design work produced Pikachu, while Ken Sugimori finalized the character’s artwork for the game and promotional materials.

Pikachu’s original concept was influenced by a squirrel rather than solely by a mouse. Nishida drew on squirrels’ cheek-storing behavior when imagining Pikachu’s electric cheek sacs. Satoshi Tajiri later identified the creature as a mouse Pokémon, which is why Pikachu is commonly described as an Electric Mouse Pokémon in the series.

Pikachu was not initially guaranteed to become the franchise mascot. The anime’s producers selected it because its cute, recognizable appearance could appeal broadly to children and to different audiences. Its role beside Ash Ketchum then made Pikachu the public face of Pokémon worldwide. Nishida also contributed designs for other Pokémon, including Bulbasaur, Charmander, and Squirtle.