Cheat mode (PAL version)
While playing a game, hold L2 and press Left, Up, Square, Triangle, Right, Circle, Up, Square to unlock a cheat menu with infinite health, all weapons, level skip and infinite money options.

Cheat Mode
Pause gameplay, hold L2 and press Triangle, Circle, Triangle, Circle, Circle, Triangle, Left, Circle, Up, Down, Right, Circle, Left, Left, Triangle, Right, Circle, Left, Left, Triangle, Circle, Down, Circle, Circle, Right.

Playing as Dan Kenstein
x - low jab
square - high jab
triangle - high hook
o - low hook
L1+square - overhead chop
L2+square - jawbuster
x+square - headbutt
L1 - high block
L2 - low block
R1 - changes camera view