Game Shark Codez:
 
                
  P1 Joker Command               
  D006A89C ????
                
  P2 Joker Command               
  D006A8A0 ????
                
  P1 Score Modifier              
  8007866C 00??
                
  P1 Quick Level-Up (Press L1)   
  D006A89C 0004
  80078658 0064
                
  P1 Level Always 1 (Easy)       
  8007819A 1010
                
  Press R1 For Slow Motion P1    
  D006A89C 0008
  80077D28 0000
                
  Press R2 For Super Win Mode P1 
  D006A89C 0002
  800785F8 0000
                
  P2 Score Modifier              
  800787F0 00??
                
  Press L2 For Slow Motion P2    
  D006A8A0 0001
  8007879E 0000
                
  Press R2 For Super Win Mode P2 
  D006A8A0 0002
  8007861A 000F