The following are known Game Genie Codes for Frankenstein: The Monster Returns on Nintendo Entertainment System (NES).

• Almost Infinite Energy
  SXKELLSA
• Start With 0 Continue
  PEOGYPLA
• Can’t Collect Extra Energy
  SZEEULSA
• 1-Hit Kills
  EEKAYLEL
• Invincible
  SZKEPASA
  SZEGPASA
  Note: This code only works after you die once. You may get stuck in boss stages.