Cheat mode
 While playing a game, hold Triangle + Circle + Square + X and press Right to
 refill your energy and unlock all weapons.

 
 Level select
 At the title screen, hold L1 + R1 + Select + Start. All areas will now be
 unlocked at the map screen.

 OR

 To chose any stage in the game Hold R1, L1, Start, Square, at the title screen.


 All weapons and energy: 
 During play HOLD Triangle + Circle + Square + X and press right. 
 All the guns should appear on the floor pick them up and look in the inventory.

 
  Game Shark Codez:
 
                 
  Infinite Heath                
  80194F44 00C8
  80194F6C 00C8
                 
  Infinite Ammo                 
  80194F6A 010E
                 
  Start With Gun                
  80194F64 0008
                 
  Stop Training Timer           
  80197184 2B28
                 
  No Damage to Cab              
  8019439E 012C
                 
  One-Hit Kills Park Crook      
  80195A44 0001
                 
  One-Hit Kills Muggers         
  80196144 0001
                 
  One-Hit Kills Park Crack Head 
  8019556C 0001