From Bulbapedia, the community-driven Pokémon encyclopedia.
Pikachu (Japanese: ピカチュウ Pikachu) is a Pokémon Battrio puck. It is one of the Special Spin Pucks.
This puck was available as part of the Battle Memory Key Victini Set White, released on July 14, 2011. It is identical to a simultaneously released Pikachu, with the exception of its base and spin colors.