Mugen Bosses
Pikachu defeat any bosses.
1st Boss: Koopa Clown Car
2nd Boss: Red Dragon
3rd Boss: Dracula
4th Boss: Masked Dedede
5th Boss: Kintaro
6th Boss: Mecha Birdo
7th Boss: Synn
8th Boss: Master Hand
9th Boss: Shao Khan
Last Boss: ???????