Heavy Nova.

 No.  Code  Effect
   1  ATHA-AA3N  Infinite energy--player 1
   2  ATHA-AA4E  Infinite power--player 1
   3  ATJT-AA60  Infinite energy--player 2 / Computer
   4  ATJT-AA7R  Infinite power--player 2 / Computer
   5  AART-ANEA+ AART-ANEG    Limit player 2 / Computer to power level 6  
   6  AART-AJEA+ AART-AJEG  Limit player 2 / Computer power level 4
   7  AART-AEEA+ AART-AEEG  Limit player 2 / Computer to power level 2
   8  VA1T-DJTJ+ 2E1T-DCJL  Start computer at low energy level
   9  B3AT-AA9R  Infinite time
 10  AFAT-AAHJ+ AFAT-AAHW  Run time down at 1/2x normal speed
 11  SFAT-BJZW  Run time down at 2x normal speed
 12  SFAT-BNZW  Run time down at 3x normal speed
 13  SFAT-BTZW  Run time down at 4x normal speed
 14  SFAT-BAZW  Run time down at 8x normal speed
 15  ATET-AA4W  Infinite continues
 16  BE0T-CACJ  9 continues
 17  AE0T-CACJ  1 continue
 18  AA0T-CACJ  No continues