Ash's Pikachu

Ash's Pikachu (Japanese: サトシのピカチュウ Satoshi's Pikachu) is the signature Pokémon of the Pokémon♪ series. Ash Ketchum has obtained this Pokémon as his starter and the first Pokémon obtained on his journey as a Pokémon Trainer, given to him by Professor Oak.

Pikachu usually travels outside of its Poké Ball.