The following are known Game Genie Codes for Cyraid on Nintendo Game Boy.

• 00D-8CB-E6E
  Infinite lives
• 04E-7CE-F7E
  Start with 4 lives
• 06E-7CE-F7E
  Start with 6 lives
• 09E-7CE-F7E
  Start with 9 lives
• 000-729-E6E
  The 1st boss on bottom level of Stage 1 is removed from the game
• AFA-4EE-19E
  Collect only 1 energy capsule and all enemy robots are destroyed and you can proceed to next room.
• 3EE-8AF-4CA + 03E-8BF-F7E
  Skip to the 3rd room after completing the 1st
• 3EE-8AF-4CA + 05E-8BF-F7E
  Skip to the 5th room after completing the 1st
• 3EE-8AF-4CA + 08E-8BF-F7E
  Skip to the 8th room after completing the 1st