Game Genie Codes

The following are known Game Genie Codes for Mega Man IV on Nintendo Game Boy.

• 001-CE9-3B7
  Infinite energy
• 269-F6F-808
  Start with 25% energy
• 4B9-F6F-808
  Start with 50% energy
• 709-F6F-808
  Start with 75% energy
• 01C-45F-915
  Infinite lives
• 01C-AEF-E66
  Start with 1 lives
• 05C-AEF-E66
  Start with 5 lives
• 09C-AEF-E66
  Start with 9 lives
• 21F-EAA-E61
  Invincibility
• 005-67B-A29
  You can shoot more than 3 shots at a time