The following are known Game Genie Codes for Land of Illusion Starring Mickey Mouse on SEGA Game Gear.

• Start With 3 Lives
  02F 31D E66
• Start With 5 Lives
  04F 31D E66
• Start With 7 Lives
  06F 31D E66
• Start With 9 Lives
  08F 31D E66
• Start With 11 Lives
  0AF 31D E66
• Infinite Lives
  009 FAD E6E
• Infinite Time
  002 4CE E6E

  Note: Switch this code off at the end of the level to continue.

• Infinite Energy
  00C 337 E69