GAME GENIE CODES: Target Earth.
 No.  Code  Effect
   1  ALAT-AA4J  MASTER CODE-MUST BE ENTERED
   2  358A-A396  Go to stage 3 after stage 1
   3  SD8A-A596  Go to stage 4 after stage 1
   4  KM8A-A996  Go to stage 5 after stage 1
   5  7M8A-A996  Go to stage 6 after stage 1
   6  JD8A-BD96  Go to stage 7 after stage 1
   7  DX8A-BF96  Go to stage 8 after stage 1
   8  AKGT-AA8R  Rex is impervious to most enemy fire
   9  2VGT-AA8J  Rex is invisible to most enemy fire
 10  AL8A-AA8T + AL8A-AA9R    Rex cannot burn up re-entering atmosphere
 11  AKXA-AA4A  Rex cannot be electrocuted
 12  AJ7T-AA20  Chron cyborg cannot harm Rex
 13  AL4T-AA92 + AK0A-AA78
 + AL5T-AA60		  Rance's death ray cannot harm Rex
 14  CB8A-AACW  HG gun carries 10 rounds instead of 20
 15  XF8A-AACW  HG gun carries 99 rounds
 16  THTT-AEWN  HG gun carries infinite ammo
 17  GB8A-AACY  25-SC weapon carries 30 rounds instead of 60
 18  XF8A-AACY  25-SC weapon carries 99 rounds
 19  THTT-AEZ2  25-SC weapon carries infinite ammo
 20  EZ8A-AAC0  40-SC weapon carries 25 rounds
 21  XF8A-AAC0  40-SC weapon carries 99 rounds
 22  THVA-AEXE  40-SC weapon carries infinite ammo
 23  EZ8A-AAC2  GL weapon carries 25 grenades instead of 50
 24  XF8A-AAC2  GL weapon carries 99 grenades
 25  THVT-AEVC  GL weapon carries infinite grenades
 26  EB8A-AAC4  MGL weapon carries 20 grenades instead of 45
 27  XF8A-AAC4  MGL weapon carries 99 grenades
 28  THVT-AEZC  MGL weapon carries infinite grenades
 29  AZ8A-AADL  Burst Attacker carries 5 rounds instead of 10
 30  XF8A-AADL  Burst Attacker carries 99 rounds
 31  THXT-AEVY  Burst Attacker carries infinite ammo
 32  CZ8A-AADJ  DD weapon carries 15 rounds instead of 30
 33  XF8A-AADJ  DD weapon carries 99 rounds
 34  THXA-AEZE  DD weapon carries infinite ammo
 35  EZ8A-AAC6  150 BZ weapon carries 25 rounds instead of 50
 36  XF8A-AAC6  150 BZ weapon carries 99 rounds
 37  THWA-AETE  150 BZ weapon carries infinite ammo
 38  EB8A-AAC8  203 BZ weapon carries 20 rounds instead of 40
 39  XF8A-AAC8  203 BZ weapon carries 99 rounds
 40  THWA-AEYE  203 BZ weapon carries infinite ammo
 41  EZ8A-AADA  MISSILE weapon carries 25 rounds instead of 50  
 42  XF8A-AADA  MISSILE weapon carries 99 rounds
 43  THWA-AE00  MISSILE weapon carries infinite ammo
 44  EZ8A-AADC  M-POD weapon carries 25 rounds instead of 50
 45  XF8A-AADC  M-POD weapon carries 99 rounds
 46  THWT-AEX2  M-POD weapon carries infinite ammo
 47  GZ8A-AADE  E-AS weapon carries 35 rounds instead of 70
 48  XF8A-AADE  E-AS weapon carries 99 rounds
 49  THWT-AE02  E-AS weapon carries infinite ammo
 50  GB8A-AADG  E-CN weapon carries 30 rounds instead of 55
 51  XF8A-AADG  E-CN weapon carries 99 rounds
 52  THXA-AEW0  E-CN weapon carries infinite ammo
 53  ADZT-AAGA  0 continues instead of 2
 54  AXZT-AAGA  4 continues
 55  BHZT-AAGA  9 continues
 56  AMZT-AA4L  Infinite continues

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