Extra credit
 
 Press Select while playing any game.
 
 Dragon Buster (increase vitality)
 
 At the Dragon Buster title screen, press Select(10) and start the
 game. Press L1 + R1 when your vitality drops below 33 to raise it 128
 at the cost of one credit.
 
 Dragon Buster (level skip)
 
 Load the game and press Triangle to display the dip switch screen.
 Enable switch 5 in box SW2 by pressing X while it is highlighted.
 Begin the game. Then at the map screen, hold L1 + R1 + Circle and
 press Start. Now release the buttons when the desired level appears.
 
 Gaplus (level select)
 
 Load the game and press Triangle to display the dip switch screen.
 Enable switch 4 in box SW3 by pressing X while it is highlighted.
 Begin the game. Then when the phrase "Parsec 1" appears, hold L1 + R1
 + Circle and press Start. Now a number corresponding to the current
 level will appear on the left edge of the screen. Press Up or Down to
 adjust this number and press Start to begin at the displayed level.
 
 Grobda (level select)
 
 At the Grobda title screen, hold L1 + L2 + R1 + R2 and press Start.
 Now choose a level from the battle selection screen.
 
 Mappy (level skip)
 
 Load the game and press Triangle to display the dip switch screen.
 Enable switch 5 in box SW3 by pressing X while it is highlighted.
 Begin the game. Then, press L1 + R1 + X to jump to the next level.
 
 Super Pac-Man (level skip)
 
 Load the game and press Triangle to display the dip switch screen.
 Enable switch 6 in box SW3 by pressing X while it is highlighted.
 Begin the game. Then when the word "Ready" appears before the
 beginning of a level, hold L1 + R1 + Circle and press Start. If you
 entered the code correctly, the screen will flash.
 
 Hidden game
 
 At the start menu, select "Cutie Q" and press Circle(7), Square(6),
 X(5) to play "Bomb Bee".
 
  Game Shark Codez:
 
             
  Infinite Credits                     
  800C97D8 0005
             
  Infinite Fireballs P1                
  800C9918 0002
  80143738 0101
             
  Infinite Vitality P1                 
  800C9978 0080
             
  Infinite Fireballs P2                
  800C991C 0002
  80143838 0101
             
  Infinite Vitality P2                 
  800C997C 0080
             
  Gaplus                               
             
  Infinite Credits                     
  80102B84 0005
             
  Infinite Lives P1                    
  30151104 0004
             
  Score Modifier P1                    
  801509B0 ????
             
  Infinite Lives P2                    
  30151105 0004
             
  Score Modifier P2                    
  301509B3 00??
  301509B4 00??
             
  Grabda                               
             
  Infinite Credits                     
  800E9EAC 0005
             
  Infinite Shield (Both Players)       
  80100764 2800
             
  Infinite Lives P1                    
  800CAD64 0002
             
  Infinite Lives P2                    
  800CAD68 0002
             
  Score Modifier P1                    
  800B7DA4 ????
             
  Score Modifier P2                    
  800B7DA8 ????
             
  Mappy                                
             
  Infinite Credits                     
  80179CE8 0005
             
  Infinite Lives (Both Players)        
  801DE864 0400
             
  Super Pacman                         
             
  Infinite Lives (Both Players)        
  801E1006 0300
             
  Ghosts Are All Eyez in The Center    
  801E0E90 4000
  801E0EB0 4000
  801E0ED0 4000
  801E0EF0 4000
             
  Always "SUPER" Pacman (Both Players) 
  801E1626 0001
  801E1630 6700
             
  Infinite Time in Bonus Levels        
  801E108E 6019
  801E10FE 0507
             
  Xevious                              
             
  Infinite Lives (Both Players)        
  80196E48 0003
  801DE8BC FF63
             
  Score Modifier (Both Players)        
  80196E44 ????
             
  Infinite Credits                     
  80178580 0005