The following are known Action Replay Codes for MDK 2: Armageddon on Sony Playstation 2 (PS2). These codes were also known as GameShark Codes and in most cases will work on both devices.

Device Compatibility: Action Replay & GameShark (Version 1 & 2)

Master Code – Must Be On
EC87B044 1456E60A

Stupid Boxer Mode
4C897BF8 1456E7A6

Indestructable Kurt
1C867540 15F6E79D
1C867544 1456E7A5
1C839408 15F6E79D
1C83940C 1456E7A5

Indestructable Max
1C832D30 15F6E79D
1C832D34 1456E7A5

Indestructable Doc
1C856CC0 15F6E79D
1C856CC4 1456E7A5