The following are known Action Replay Codes for Lufia and the Fortress of Doom on Super Nintendo Entertainment System (SNES).

• Shopkeepers do not charge for purchases (Does not work for some shops)
  00CABF57
• No HP lost when walking over swamp ground
  0196B400
• More HP lost when walking over swamp ground
  0196B404
• Move around caves and the world map quicker (Except when leaving a vehicle like the boat)
  01982920
• No enemies but you cannot enter or exit towns, caves or towers. Just turn the effects off and then exit and turn them on again.)
  01B45698
• Gain 6-digit experience and enemies drop a Might Shield
  01F5DA0D
• Gain 6-digit experience and enemies drop a Zirco Shield
  01F5DA47
• Gain 6-digit experience and enemies on Doom Island drop a Might Bow
  01F5DA71
• Enemies drop a Might Armor 70% of the time
  01F5DA7B
• Get high experience (varies) and enemies will drop a Might Helmet 70% of the time
  01F5DA7D
• Gold Orcs drop a Might Sword while others drop different items of their own 70% of the time
  01F5DA82
• Enemies drop different items. Efreets (Big Fire Monster) will drop a Might Bow
  01F5DA85
• Immune to all Status Effects (Stone, Poison, Confused, etc.)
  08B91280
• Infinite HP
  08E987BD
• Infinite MP in battle
  08E9C6BD
• Higher max level of HP from Power Potion
  0AECE210
• Increase 255-260 MP when using a Spell Potion
  0AED04FF
• Increase 255-260 INT when using a Mind Potion
  0AED4AFF
• Gain 255-260 STR when using a Great Potion
  0AED6DFF
• Gain a level after each battle
  F1FC6CCC
• Higher max level of MP from using a Spell Potion
  0AED0510
• More Agility points from using a Speed Potion
  0AED2810
• More Intelligence points from using a Mind Potion
  0AED4B10
• More Strength points from using a Great Potion
  0AED6E10
• Cheap Cmokeballs: They only cost 1 gold each
  0AEDA101
• Cheap Bombs: They only cost 1 gold each
  0AEF4D01
• Enemies give 30,000 EXP
  FDECFFFC