The following are known Game Genie Codes for Legend of the Mystical Ninja on Super Nintendo Entertainment System (SNES).

• Infinite Lives (Top-View Stages)
  3CA6-A764
• Start With 6 Lives
  D927-A464
• Start With 9 Lives
  D627-A464
• Die If You Get Hit Once
  DDCF-0429
• Pick Up More Coins From Bad Guys
  9DAF-DD6E
• No Coins Used Up When Thrown
  DDED-D4D4
• Infinite Energy
  89CF-0729
• Don’t Lose Most Weapons When Hit
  40C0-04F9
• Faster Timer
  F0BE-AF20
• Slower Timer
  1DBE-AF20
• Always Win Lottery
  DDFF-9A8C
  DDFF-9AEC
  DDFF-927C
  DDFF-925C
  DDFF-928C
  DDFF-92EC
  DDFC-9E78
  DDFC-9E58
• Infinite Money
  BBFC-BE7C
  BBFC-BE5C
  DBFC-BE8C
• Infinite Time
  BBDB-F286
• Infinite Sandals
  17FD-2A7C
• Max Health
  FDFC-B37C
• Infinite Health
  FDF8-BA8C
• Always Have Best Weapon
  D4F8-B37C
  Note: With this code, if you get hit you will lose your weapon graphic, but the strength will remain the same. For example, if you get hit while you have the yo-yo, your weapon will turn into the golden pipe, and will act like the golden pipe, but the golden pipe’s strength will be the same as the yo-yo. To fix this, simply switch to your coins or bombs, or anything besides your weapon, and then switch back.
• Infinite Bombs
  BBF8-B38C
• Infinite Pizza
  17FF-2A8C
• Always Get Good Fortune
  D4F0-9E8B
  6DF0-9EEB
• Infinite Laser In Breakdown The Wall
  17FE-FE7B
• Infinite Lives In Breakdown The Wall
  D7F3-F28B
• Have All Scroll Powers
  DFF2-B28C
  DFF2-B37C
  DFF2-B38C
  DFF2-BE7C
• Infinite Scrolls
  DBF8-B27C
• Infinite Pow
  BBFC-B38C
• Infinite Pow Bar
  DCFA-B28C
• Infinite Hamburger
  17FF-227C
• Answer Correctly To Win Quiz Game
  D7FD-9A8C
• Always Win Low/High Dice Game
  DDFF-928C
• Lots of Money From Painting Game
  17FD-928C
  17FD-92EC
• First Horse Odds Are X99
  17FF-937C
• First Horse Always Wins The Race!
  DDFE-F35C
  DDFE-F38C
  DFFE-FE7C
  DFFE-FEEC
• Infinite Lives
  D0F8-BA7C
• Infinite Max Pizza
  17FF-2A7C