Body Hazard Codes -

Invincibility:
Pause game play and press Circle, Square, Left, Right + R1 + R2.

All weapons:
Pause game play and press R1 + Square, Triangle, Circle, X.

Big head mode:
Pause game play and press L1 + L2 + R2 + Down.

More clean points:
Pause game play and press L1 + L2 + Circle + Square.

Special mode:
Pause game play and press R1 + R2 + Triangle + Circle.

Fight secret Boss:
Enter Circle, Square, Square, X, Circle, X, X, Circle as a password.