Star Control.
 No.  Code  Effect
   1  BTPT-AN8A  Make start button a true pause button.
 (Normally pressing start twice exits the game!)  
   2  JB2A-BYWE  More base income per turn
   3  P30T-BYIN  Mines make more money
   4  JB4A-CACT  Androsynth: Superior bubbles
   5  AWPB-RECE  Androsynth: Faster energy regeneration
   6  ARPB-RGD0  Ariloulaleelay: Faster energy regeneration
   7  CCPB-SADN  Ariloulaleelay: Increase crew to 16
   8  BB9A-CAEA  Chenjesu: More doggies allowed
   9  ALPB-R8FG  Chenjesu: Faster energy regeneration
 10  AWPB-REG4  Human: Faster energy regeneration
 11  AGFA-CAAJ  Human: Missiles track better
 12  CCJT-JAGJ  Ilwrath: Indestructible flames
 13  BLJT-CAG0  Ilwrath: Flame cone is twice as long
 14  FLPV-RYK0  Mmrnmhrm: Maximum energy supply
 15  ALLA-CABC  Mmrnmhrm: More maneuverable Y-wing form
 16  BLPV-RCDR  Mycon: Plasma torpedoes cost 1/2 normal
 17  7WSA-D938  Mycon: Crew regrowth cost 1/2 normal
 18  ARPV-RAFC  Shofixti: Continuous fire
 19  BWPV-R2E2  Shofixti: Increase crew to 12
 20  AR0T-CAB8  Spathi: Forward shots do 3 points damage
 21  ML0T-CAFL  Spathi: BUTT missiles last 3x longer
 22  ECPV-RAS8  Syreen: Double energy
 23  AWR-BRCAL  Syreen: Fire and scram faster
 24  GLRB-RCB2  Umgah: Energy regeneration is 1/3 time
 25  AGRB-RAB4  Umgah: Superior maneuverability
 26  AXET-CAGC  Urquan: Fighters shoot more often
 27  GDDT-CADL  Urquan: Fighters move faster
 28  JCRB-RAE0  VUX: Faster turning
 29  ACRB-RCE8  VUX: Move faster
 30  HCRB-RAGJ  Yehat: Move 1.5x faster
 31  FCRB-RTRE  Yehat: Doubles crew
 32  CKYA-CA3R  No asteroids, faster play
 33  CVYA-CAB8  Lots of asteroids, slower play
 34  H8NT-AAE6  Superfast asteroids
 35  DKYA-CA52  No planets
 36  AZYA-CAER  Five planets
 37  ACMA-AAHN  Planets have no gravity
 38  RGVT-A6VW  Collision with planet is deadly
 39  ACVT-AA3N  Collision with planet is harmless
 40  C3TA-CA24  Find precursor relics at most stars