All weapons
 
 Enter "ICHEAT" as a name. Then while playing a game, press A, Right,
 C-Down, C-Right, C-Up, A, Left.
 
 Weapons power-up
 
 Enter "ICHEAT" as a name. Then while playing a game, press C-Down,
 C-Up, Up, Z(2), Left, C-Right.
 
 Smart bomb
 
 Enter "ICHEAT" as a name. Then, press A, C-Up, C-Up, Up, Left.
 
 Restore health and fuel
 
 Enter "ICHEAT" as a name. Then while playing a game, press Down, Up,
 Right, A, B, Left, C-Right.
 
 All artifacts
 
 Enter "ICHEAT" as a name. Then while playing a game, press Up,
 C-Down, C-Right, Z, Up, Left.
 
 Weak Boss
 
 Enter "ICHEAT" as a name. Then while playing a game, press Z,
 C-Right, C-Right, B, Left, C-Right.
 
 Kill Adam
 
 Enter "ICHEAT" as a name. Then while playing a game, press B, Left,
 C-Right, C-Right, Down.
 
 Black Adam
 
 Enter "ICHEAT" as a name. Then while playing a game, press C-Left,
 C-Right, A, C-Down, C-Right, Left.
 
 Tall Adam
 
 Enter "ICHEAT" as a name. Then while playing a game, press B, A,
 C-Up, A, C-Up, A.
 
 Short Adam
 
 Enter "ICHEAT" as a name. Then while playing a game, press Down,
 C-Left, A, Right, Z.
 
 Mutant alien
 
 Enter "ICHEAT" as a name. Then while playing a game, press C-Down,
 Up, Z(2), C-Right, Right. Enabling this cheat while facing a
 harvester will transform that alien into a mutant. Repeat the code to
 disable it. 
 
 Fat legged aliens
 
 Enter "ICHEAT" as a name. Then while playing a game, press Left, A,
 Right, Down. Repeat the code to disable it.
 
 Dancer
 
 Enter "ICHEAT" as a name. Then while playing a game, press Down, Up,
 C-Up, Down, C-Right, C-Right.
 
 Surreal mode
 
 Enter "ICHEAT" as a name. Then while playing a game, press C-Down, Up,
 Right(2), C-Right, A, Left to make the buildings jump. Repeat the
 code to disable it.
 
 Additional difficulty levels
 
 At the difficulty selection screen, repeatedly press Left to access
 the "Very Easy" setting or repeatedly press Right to access the "Very
 Hard" setting. 
 
  Game Shark Codez:
 
      
  Infinite Health                                    
  8104DCEC 0258
      
  Infinite Greece                                    
  81052B18 0098
  81052B1A 967F
      
  No Humans Killed                                   
  8104816A 0000
      
  Have Alien Artifact                                
  8004DC5F 0001
      
  Item Modifier                                      
  8004DC4E ????
      
  Weapon Modifier (1st Position)                     
  80048138 00??
      
  Weapon Modifier (2nd Position)                     
  80048139 00??
      
  Weapon Modifier (3rd Position)                     
  8004813A 00??
      
  Weapon Modifier (4th Position)                     
  8004813B 00??
      
  Weapon Modifier (5th Position)                     
  8004813C 00??
      
  Weapon Modifier (6th Position)                     
  8004813D 00??
      
  Weapon Modifier (7th Position)                     
  8004813E 00??
      
  Weapon Modifier (8th Position)                     
  8004813F 00??
      
  Infinite Ammo Shotgun                              
  81048146 8000
      
  Infinite Ammo Rifle                                
  81048148 8000
      
  Infinite Ammo Machine Gun                          
  8104814A 8000
      
  Infinite Ammo Rocket Launcher                      
  8104814C 8000
      
  Infinite Ammo TNT                                  
  8104814E 8000
      
  Infinite Ammo Sun Shield                           
  81048150 8000
      
  Infinite Ammo Grenades                             
  81048152 8000
      
  Infinite Ammo Tri-Spinner                          
  81048154 8000
      
  Infinite Ammo Vehicle Weapon 1                     
  81048156 8000
      
  Infinite Ammo Vehicle Weapon 2                     
  81048158 8000
      
  Infinite Ammo Arme 2                               
  8104815A 8000
      
  Infinite Ammo Waffe 2                              
  8104815C 8000
      
  Infinite Ammo Chaingun                             
  8104815E 8000
      
  Infinite Ammo Fragcannon                           
  81048160 8000
      
  Infinite Ammo Lazer Missiles                       
  81048162 8000
      
  Infinite Ammo Resonator                            
  81048164 8000
      
  Infinite Ammo Plasma Bombs                         
  81048166 8000
      
  Quantity Digits to Accompany Item Modifier Code    
      
  0000 - Nothing                                     
  0002 - Howitzer Shells                             
  0040 - Crank                                       
  0080 - Windmill Cog                                
  0100 - Heirglyph Map Piece                         
  0400 - Hangar Key                                  
  FFFF - All Items                                   
      
  Quantity Digits to Accompany Weapon Modifier Codes 
      
  00 - Nothing                                       
  01 - Fuel                                          
  02 - Pistol                                        
  03 - Shotgun                                       
  04 - Rifle                                         
  05 - Machine Gun                                   
  06 - Rocket Launcher                               
  07 - TNT                                           
  08 - Sun Shield                                    
  09 - Grenades                                      
  0A - Tri-Spinner                                   
 
  Items Below Won't Equip                            
 
  0B - Vehicle Weapon 1                              
  0C - Vehicle Weapon 2                              
  0D - Arme 2                                        
  0E - Waffe 2                                       
  0F - Chaingun                                      
  10 - Fragcannon                                    
  11 - Lazer Missiles                                
  12 - Resonator                                     
  13 - Plasma Bombs