The following are known Game Genie Codes for Milon’s Secret Castle on Nintendo Entertainment System (NES).

• Infinite Energy
  SZNSLZSA
• Start With More Energy
  AGSEEZAZ
• Start With A Bigger Energy Bar
  AISAOXAL
• No Energy Picked Up
  AEKGNXAA
• More Energy Picked Up
  AOKGNXAE
• Floating Milon
  ASNPVZLA
• Infinite Money
  SXEIEPSP
• Totally Invincible
  NPSSZX
• One Hit And You Die
  IPSSZX
• Lighting Comes Out Fast
  PEEPPZ
• Cool Fire Power When Facing Right
  ZZZXYY
• Infinite Money
  TZZZXV