The following are known Game Genie Codes for Wonder Boy VI: Monster World IV on SEGA Genesis.

• Regional Bypass Code
  A22T-AA62
• Protection From Most Enemies
  AJJT-CA8T
• Stay Invincible (Flashing) Twice As Long After Getting Hit
  96KA-CAAE
• Once You’re Hit, You’ll Stay Invincible (Flashing) Until You Kneel Before A Statue To Recover Your Health, Or When You Go To A New Level
  AJKA-CA3R
• Life Drops Are Worth 2 (Instead of 1)
  SCNT-FJTW
• Life Drops Are Worth 4 (Instead of 1)
  SCNT-FTTW
• Life Drops Are Worth 8 (Instead of 1)
  SCNT-FATW
• You Only Need 5 Life Drops For An Extra Heart (Instead of 10)
  A0NT-EAA2
• You Only Need 2 Life Drops For An Extra Heart (Instead of 10)
  ALNT-EAA2