The following are known Action Replay Codes for Herzog Zwei on SEGA Genesis / Mega Drive (Genesis).

The codes should work with the region specified but may work for other regions as well.

Device Compatibility: Action Replay

• Level Modifier
  FFF84D:XX
  FFF927:XX

  It seems that either code can be used separately to give the same results as well.

  00 – Abgrund
  01 – Vulkan
  02 – Loch
  03 – Strand
  04 – Stadt
  05 – Eisfrei
  06 – Waldung
  07 – Oase

Red Codes

• Infinite Armor
  FF8B9E:FF
• Infinite Gun Ammo
  FF8BAD:60
• Infinite Energy
  FF8BAE:14
• Infinite Money
  FF8BE8:C350
• No Armor
  FF8B9E:00
• No Gun Ammo
  FF8BAD:00
• No Energy
  FF8BE8:00
• No Money
  FF8BE8:0000

Blue Codes

• Infinite Armor
  FF8C9E:FF
• Infinite Gun Ammo
  FF8CAD:60
• Infinite Energy
  FF8CAE:14
• Infinite Money
  FF8CE8:C350
• No Armor
  FF8C9E:00
• No Gun Ammo
  FF8CAD:00
• No Energy
  FF8CAE:00
• No Money
  FF8CE8:0000