Play as a hidden boss
 
 Enter "Circle, Square, Square, X, Circle, X, X, Circle" as a password.
 
 Invincibility
 
 Pause the game and press Circle, Square, Left, Right + R1 + R2.
 
 All weapons
 
 Pause the game and press R1 + Square, Triangle, Circle, X.
 
 Increase clean points
 
 Pause the game and press L1 + L2 + Circle + Square.
 
 Big head mode
 
 Pause the game and press L1 + L2 + R2 + Down.
 
 Special mode
 
 Pause the game and press R1 + R2 + Triangle + Circle.
 
  Game Shark Codez:
 
                         
  No Time Limit 
  801163E0 1000