Game Shark Codez:
 
 Note: You must have a 3.0 or higher version of the Game Shark to use
 these codes.
 
              
 Enable Code (Must Be On)       
 F105A8B0 2400
 F105032A 0120
              
 Defender Codez:                 
              
 Infinite Lives P1              
 801694E9 0003
              
 Infinite Smart Bombs P1        
 801694EB 0003
              
 Score Modifier P1 (0000-9999)  
 811694E4 ????
              
 Infinite Lives P2              
 80169526 0003
              
 Infinite Smart Bombs P2        
 80169528 0003
              
 Score Modifier P2 (00-99)      
 80169521 00??
 80169522 00??
              
 Joust Codez:                    
              
 Infinite Lives P1              
 80169371 0005
 80169372 0005
              
 Score Modifier P1 (0000-9999)  
 8116936E ????
              
 Infinite Lives P2              
 8016937B 0003
 8016937C 0003
              
 Score MOdifier P2 (0000-9999)  
 81169378 ????
              
 Robotron-204 Codez:             
              
 Infinite Lives P1              
 8016B10C 0003
              
 Score Modifier P1 (0000-9999)  
 8116B106 ????
              
 Infinite Lives P2              
 8016B148 0003
              
 Score Modifier P1 (0000-9999)  
 8116B142 ????
              
 Rootbeer Tapper Codez:          
              
 Infinite Lives                 
 8016D7C7 0003
              
 Infinite Lives P1              
 8016D7CA 0003
              
 Score Modifier P1 (00-09)      
 8016D717 00??
 8016D718 00??
 8016D719 00??
 8016D71A 00??
              
 Infinite Lives P2              
 8016D7CE 0003
              
 Score Modifier P2 (00-09)      
 8016D71D 00??
 8016D71E 00??
 8016D71F 00??
 8016D720 00??
              
 Sinistar Codez:                 
              
 Infinite Lives P1 & P2         
 8016931C 0003
              
 Infinite Bombs P1 & P2         
 80169333 0003
              
 Score Modifier P1 & P2 (00-99) 
 8016931F 00??
 80169320 00??
              
 Spy Hunter Codez:               
              
 Infinite Time                  
 8016E69F 0009
 8116E6A0 0909
              
 Score Modifier (00-99)         
 8016E6A5 00??
 8016E6A6 00??
 8016E6A7 00??
 8016E6A8 00??