The following are known Game Genie Codes for Dragon Quest III: Soshite Densetsu e… on Super Nintendo (SNES).

• Infinite HP
  C276-572D
• Infinite MP
  C275-EDBD
• Infinite Gold
  C29F-EDB4
  C29F-EFB4
• Enables Debug Menu
  EEEE-E765
  EEEE-E7A5
  6DEE-E4B8
  Note: Start the game and press L to bring up the menu and press Left or Right to change the menu pages.