Pikachu is an Electric-type Pokémon introduced in Generation I). It is a short, chubby rodent Pokémon covered in yellow fur with two horizontal brown stripes on its back. It has a small mouth, long, pointed ears with black tips, and brown eyes. Each cheek is a red circle that contains a pouch for electricity storage. It has short forearms with five fingers on each paw, and its feet each have three toes. At the base of its lightning bolt-shaped tail is a patch of brown fur). Pikachu is a member of the Pikachu family, which includes Pichu and Raichu.

In summary, Pikachu is an Electric-type rodent Pokémon with yellow fur, red cheeks, and a lightning bolt-shaped tail.