The following are known Game Genie Codes for Splatterhouse 2 on SEGA Genesis.

• Infinite Lives
  AX3A-AA2N
• Start With 2 Lives
  AE0A-AAG8
• Start With 3 Lives
  AJ0A-AAG8
• Start With 4 Lives
  AN0A-AAG8
• Start With 6 Lives
  AY0A-AAG8
• Start With 7 Lives
  A20A-AAG8
• Start With 8 Lives
  A60A-AAG8
• Start With 9 Lives
  BA0A-AAG8
• Start With 10 Lives
  BE0A-AAG8
• Start With 1 Hit Point
  AEBT-AAB6
• Start With 2 Hit Points
  AJBT-AAB6
• Start With 3 Hit Points
  ANBT-AAB6
• Start With 5 Hit Points
  AYBT-AAB6
• Start With 10 Hit Points
  BJBT-AAB6
• Start With 15 Hit Points
  B6BT-AAB6
• Start With 20 Hit Points
  CTBT-AAB6
• Start With 25 Hit Points
  DEBT-AAB6
• Start With 30 Hit Points
  D2BT-AAB6
• Start With 50 Hit Points
  GJBT-AAB6
• Start With 100 Hit Points
  NTBT-AAB6
• Start With 200 Hit Points
  3ABT-AAB6
• Start With 250 Hit Points
  9JBT-AAB6
• Untouchable
  AD2A-AA9J
  Note: If you turn this code off, any damage taken will be inflicted on the character.
• Untouchable By Attacks, Which Can Hurt The Body of Your Character
  ABFT-CA3N
• Untouchable By Things, Which Can Hurt The Legs of Your Character
  AADA-CA56
• Untouchable By Water
  AADA-CA96