The following are known Game Genie Codes for Alien Soldier on SEGA Genesis.

• Region Bypass Code (EUR/JPN/PAL – A Version)
  RECA-A6XJ
  RECA-A6XL
  RECT-A60J
• Region Bypass Code (JPN/NTSC – B Version)
  REBT-A6XN
  REBT-A6XR
  RECA-A60R