The following are known Game Genie Codes for Godzilla: Monster of Monsters! on Nintendo Entertainment System (NES).

• Both Monsters Never Lose Power
  AEUSLKNY
• Both Monsters’ Power Restored Quicker
  AEKSAGPE
• Both Monsters Invincible
  AAXITSNY
• Enemy Inflicts More Damage To Both Monsters
  VYXITSNN
• Changes Colour
  KOTKOK
• Godzilla’s Electric Blasts Are Useless
  AEZAEZ
• Characters Disappear
  SNAKEO