Black And Bruised Cheats for GameCube

Select the cheat option at the setup menu and the enter the following combo...
Start, A, Y, X(2), Z(2), X, Y, A, Start.

Select the cheat option at the setup menu and the enter the following combo... Start, A, Z, Y, X, Start.

Play as King Khan
Win the Top Contender Tournament to unlock King Khan.
Play as Matador
Win the Intercontinental Tournament to unlock Matador.
Play as Odive
Win the Pro Tournament to unlock Odive.
Play as Old Master
Win the World Championship Tournament to unlock Old Master.
Play as Training Robot
Successfully complete training mode to unlock the Training Robot.

Keep pressing A quickly after you have been knocked down.

Select the cheat option at the setup menu and the enter the following combo... A(2), Y(2), Z(2), X(2), Start.

Select the cheat option at the setup menu and the enter the following combo... Start, Y, Z, Y, Z, A(2), Start.