Sarge: Press and hold RIGHT and X, L, L, UP, DOWN, LEFT, DOWN.
Slyck: Press and hold Y and L, L, UP, L, LEFT, R.
Ice: Press and hold B adn UP, L, L, L, RIGHT.
Jack: Hold UP and X, A, R, R, Y, A.
Thunder: Hold diag. LEFT/UP and Y, B, X, B, B, X, A.
Spike: Hold R and X, B, B, A, Y, LEFT, A.