Appearance
Pichu is a small pale-yellow rodent with black, angular ear tips, collar, and tail. Its pink cheeks hold little electricity, and its nose is a dot.

#172
Tiny Mouse Pokémon
Pichu is a Electric-type Pokémon, No. 172 in the National Pokédex, introduced in Generation 2 (Johto region).
« Pichu stores electricity in the sacs on its cheeks but discharges it inadvertently when agitated or excited. Being yet immature, the Pokémon's handling of electricity is rather inept. »
Pichu is a small pale-yellow rodent with black, angular ear tips, collar, and tail. Its pink cheeks hold little electricity, and its nose is a dot.
It walks on its hind legs. Still clumsy with a charge, it shocks itself when energy leaks, hard enough to jolt an adult. It evolves into Pikachu.
The Pichu Brothers return often. One has a scruff on its ear, like Ash's Pikachu. The series shows that this Pikachu was born a Pichu.
Ken Sugimori drew Pichu while Game Freak sought the next Pikachu, using squirrels and other rodents. The name shortens Pikachu: sparkle, a mouse's squeak, and petite.