Mutation is an alternative game type used in Super Smash Bros. Battle Cards. In this game type, a Basic Smasher can evolve into any Stage 1 Smashers, which can also evolve into any Stage 2 Smashers. Evolution in this game type allows you to ignore the character specific type when evolving, as well as putting FS cards onto Smashers. (If a Smasher FS is of a Stage 2 Smasher, it still can only be put on top of a Stage 2 Smasher.) This game type is compatible with any other of the game types used in Super Smash Bros. Battle Cards.