The following are known Action Replay Codes for The Simpsons: Bart’s Nightmare on SEGA Genesis / Mega Drive (Genesis).

The codes should work with the region specified but may work for other regions as well.

Device Compatibility: Action Replay

• Infinite Energy
  FFC673:0001
• Infinite Bubblegum
  FFC802:0005
• Infinite Melon Seeds
  FFC807:0005
• Removes Some Enemies
  FFC863:00
  Note: Only use this code after you’ve entered a stage.