Play as Fwank
 
 At the character selection screen, highlight Mamma and press L1,
 Circle, R1, Down(2), R1, Circle, L1(2). If you entered the code
 correctly, a red balloon will appear over Sister Magpie. Move the
 cursor to her spot and Fwank will be playable.
 
 Level skip
 
 Pause the game and hold L1 + L2 for ten seconds, until the red cursor
 can not be moved by the D-pad. While those buttons are held, press
 Left, Triangle, X, Right, Circle, Triangle, Down.
 
 Refill health
 
 Pause the game and hold L1 + L2 for ten seconds, until the red cursor
 can not be moved by the D-pad. While those buttons are held, press
 Down, Right, Left, Triangle, Right, Down. Now when the game is
 paused, an option to restore your health will appear.
 
 Refill ammunition
 
 Pause the game and hold L1 + L2 for ten seconds, until the red cursor
 can not be moved by the D-pad. While those buttons are held, press
 Triangle, Left(3), Circle, Triangle, Down. Now when the game is
 paused, an option to refill your ammunition will appear.
 
 Weapon power-up
 
 Pause the game and hold L1 + L2 for ten seconds, until the red cursor
 can not be moved by the D-pad. While those buttons are held, press
 Left, Up, X, Circle. Now when the game is paused, an option to
 power-up the weapons will appear. 
 
 Play as a walking corpse
 
 Enter the "Health refill" code to enable the "Health" option on the
 options menu. Then, pause the game immediately after dying, and
 before regenerating. Use the "Health" option to refill the life bar.
 Your character can now move around as a splattered corpse, totally
 invulnerable to enemies. However, since your own actions are limited,
 this trick is of limited value. However, it is an interesting thing
 to try on level 6 or during a two player game. 
 
  Game Shark Codez:
 
           
  Infinite Continues                       
  800EEC08 0009
           
  Always Play Level Modifier               
  80056538 000?
           
  Start on Level Modifier                  
  D0056538 0001
  80056538 000?
           
  Player 1 Codes                           
           
  Invincible [Note]                        
  800ADE32 00D5
           
  Infinite Lives                           
  800ADE1E 001E
           
  Infinite Ammo                            
  800ADE1A 03E8
           
  Infinite Ultra Bombs                     
  800ADE1C 0003
           
  Always Have Gun Powered at Level ? (0-7) 
  800ADE18 ?FFF
           
  Player 2 Codes                           
           
  Invincible [Note]                        
  800ADEBE 00D5
           
  Infinite Lives                           
  800ADEAA 001E
           
  Infinite Ammo                            
  800ADEA6 03E8
           
  Infinite Ultra Bombs                     
  800ADEA8 0003
           
  Always Have Gun Powered at Level ? (0-7) 
  800ADEA4 ?FFF
           
  Both Player Codes                        
           
  Infinite Lives                           
  80081500 0000
  80081502 0000
           
  Infinite Ammo                            
  80081D9C 0000
  80081D9E 0000
           
  Infinite Bombs                           
  80081780 0000
  80081782 0000
           
 Note: To be invincible, die and turn the Game Shark off. Then, wait a
 couple of second and turn the Game Shark on.