Sapporo Pikachu (サッポロ ピカチュウ Sapporo Pikachu) ~ Mouse Pokémon
"It has small electric sacs on both its cheeks. If threatened, it looses electric charges from the sacs."
The different Pokémon Centers in Japan sometimes add a special something to their mascots, and the Sapporo Center added a cowboy hat to their Pikachu. Obviously, being a Texan and somewhat of a cowgirl, I just couldn't resist it!