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

• Start With 0 Grenades
  ABEA-EADY
• Start With 99 Grenades
  NPEA-EADY
• Infinite Grenades
  AAEA-EAFG
• Start With 3 Lives
  AKEA-EADW
• Start With 99 Lives
  NPEA-EADW
• Infinite Lives
  AA5A-EAH6
• Start With 99 Continues
  NPEA-EADT
• Infinite Continues
  AA5T-EAD2
• Start With 99 Alien Grenades
  NPEA-EAD0
• Infinite Alien Grenades
  AAEA-EAE2
• Protects Against Most Enemies
  C27A-CA6W
  BT7T-CA3E
• Don’t Lose Energy When You Fall Off Screen
  AA5T-EAC4
• Protection Against Floor Spikes
  ACHT-CAHL
• Pick Up Five Mission Objectives For Each 1 You Get
  A0NA-AAHC
• Extra Life Worth Nothing
  ACBT-CAHE
• Extra Life Worth 2
  ALBT-CAHE
• Energy Icon Does Nothing
  ACBT-CAGR
• Energy Icon Restores Energy To Full
  JCBT-CGGR
• Machine Gun Does Not Heat Up
  ADXT-CAGA
• Machine Gun Heats Up Quicker
  LDXT-CAGA
• Machine Gun Cools Off Instantly
  RHXT-C61A
• Invincible After You Get Hit
  AC0T-AAG0