View Credits
At the title screen press C,B,A,A,B,C,Y,Z,X,D,D,Start.
Debug Mode
At the title screen press U,U,D,D,L,R,L,R,X,B,Z,R.
Hidden Victors
At the title screen press X,Y,Z,X,Y,Z,C,B,A,U,U,Start.
Cheat Mode
At the title screen press U,U,U,U,A,B,C,D,D,X,Y,Z, Start. Choose a game, press and hold X and press U to access a list of numbers. Choose one o these numbers and then press Z.