The following are known Game Genie Codes for The Pirates of Dark Water on SEGA Genesis.

• 96HT-AEDW
  Start with 3 lives
• 96HT-AJDW
  Start with 6 lives
• 96HT-ATDW
  Start with 9 lives
• AWJA-AA9C
  Infinite lives
• ACJA-AADC
  Don’t lose any health from falling off screen
• A4JA-AADC
  Take 1/2x damage from falling off screen
• P57T-AA2J
  Don’t take any damage from most enemies
• ACET-B688
  Infinite projectiles(daggers, arrows)
• ACET-B65Y + AC6A-K686
  Infinite food on pick-up
• ACEA-B63L
  Infinite gravity potions on pick-up
• ACEA-B66C
  Infinite stone elixirs on pick-up
• ACEA-B68N
  Infinite shield magic on pick-up
• ACET-B62T
  Infinite vortex magic on pick-up
• ACET-B68E + AC6A-K686
  Infinite hearts on pick-up
• AAYT-D636
  Infinite keys on pick-up
• RHFT-J6VC
  Infinite coins on pick-up
• AHNT-NAEA
  Use password IITBDIA and Ren starts with full sword