Black and Bruised

Invincibility
Enter to the "Setup", after choose the "Cheat" option.
press Start, X, X, Circle, Circle, R1, R1, Square, Square, Start.

Unlock every boxers:
Enter to the "Setup", after choose the "Cheat" option.
Press X, Circle, Square, Square, R1, R1, Square, Circle, X

Turbo mode
Enter to the "Setup", after choose the "Cheat" option.
press Start, R1(10x times), Start.

Constant power-ups
Enter to the "Setup", after choose the "Cheat" option.
press Start, X, Circle, X, Circle, X, Circle, Square, Square, Square, Start.

Conversation mode
Enter to the "Setup", after choose the "Cheat" option.
press Start, R1, X, Circle, Square, R1, R1, R1, Start.

New costumes
Enter to the "Setup", after choose the "Cheat" option.
press X, R1, Circle, Square.
or finish Life mode with a boxer

All boxer's Life mode
Enter to the "Setup", after choose the "Cheat" option.
press X, Square, Circle, R1, X, Square, Circle, R1.

Intercontinental Tournament
Enter to the "Setup", after choose the "Cheat" option.
press X, X, X, Circle, Circle, Circle, Square, Square, Square.
or win 1st place on all 5 default tournaments

Scrap Yard
Enter to the "Setup", after choose the "Cheat" option.
press Circle, R1, Circle, R1, X, X
or win 1st place in all survival modes

Unlock Training Robot
Finish training mode once

Unlock Odiva
Win 1st place in the Pro Tournament

Unlock King Khan
Win 1st place in the Top Contender Tournament

Unlock Matador
Win 1st place in the Intercontinental Tournament

Unlock Old Master
Win 1st place in the World Championship Tournament

Prevent a knockout
After getting knocked, press X down quickly and many times as you can
to restore a small amount of energy.