Unlimited continues
Quickly press [Up], [Down], [Up], [Down], [Up], [Down], [Left], [Right], [Left] at the character selection screen. The keyboard equivalent is W, S, W, S, W, S, A, D, A for player one.
Disco mode
Quickly press [Up], [Down], [PK] + [SK] at the character selection screen. The keyboard equivalent is W, D, J + L for player one.
Limb Boss
Quickly press [Up] + [Left], [Up], [Down], [Down] + [Right] at the character selection screen. The keyboard equivalent is W + A", W, S, S + D for player one.
Fight as Shrapp
Highlight Psyclopps and quickly press [PK], [PP], [SK], [PP] at the character selection screen. The keyboard equivalent is J, I, L, I for player one.
Fight as Carnigore
Highlight Carnigore and quickly press [SK], [PP], [PK] at the character selection screen. The keyboard equivalent Is L, "I ,J" for player one.