The following are known Game Genie Codes for Disney’s The Little Mermaid on Nintendo Game Boy.

• 018-96F-E66
  Start with 1 energy point
• 058-96F-E66
  Start with 5 energy points
• 088-96F-E66
  Start with 8 energy points
• C98-22E-3BE
  Infinite energy
• 017-F1F-E66
  Start with 2 lives
• 057-F1F-E66
  Start with 6 lives
• 097-F1F-E66
  Start with 10 lives
• 00C-79F-3BE
  Infinite lives
• 018-07F-195
  Start on Level 2
• 028-07F-195
  Start on Level 3
• 038-07F-195
  Start on Level 4
• 048-07F-195
  Start on Level 5
• 058-07F-195
  Start on Level 6
• 068-07F-195
  See the end-of-game credits