The following are known Game Genie Codes for T2: The Arcade Game on SEGA Genesis.

• Start With 1 Credit
  AE6A-BE3W
• Start With 25 Credits
  EY6A-BE3W
• Start With 50 Credits
  LA6A-BE3W
• Start With 75 Credits
  RY6A-BE3W
• Infinite Credits
  RZ8A-A6V6
• Advance To Next Level And Get Infinite Credits When Terminated
  XE6A-BE3W
  Note: This does not work on the final level and the code may cause some glitches.
• Start On Human Hideout
  SF4A-BEXL
• Start On Trip To Skynet
  SF4A-BJXL
• Start On Skynet
  SF4A-BNXL
• Start On Cyberdyne Systems
  SF4A-BTXL
• Start On The Freeway
  SF4A-B2XL
• Start On The Steel Mill
  SF4A-B6XL
• Always Have Maximum Gun Power
  AADT-AAEL
• Protection From Most Hazards
  RGJA-A60C
• Infinite Rockets And Shotgun Shells On Pick-Up
  RZ8A-A6X0
• Start With Lots of Rockets
  XGGA-BA30