The following are known Action Replay Codes for X-Men: Mutant Academy on Nintendo Game Boy / Color (GB / GBC). These codes were also known as GameShark Codes and in most cases will work on both devices.

Device Compatibility: Action Replay & GameShark

P1: Infinite Health
012b33c8
012b35c8

P1: Low Health
010a33c8
010a35c8

P1: Max Rage Gauge
012b30c8
012b32c8

P1: No Rage Gauge
010030c8
010032c8

P1: Ultra Quick Win!
010033ca
010035ca

P2: Infinite Health
012b33ca
012b35ca

P2: Low Health
010a33ca
010a35ca

P2: Max Rage Gauge
012b30ca
012b32ca

P2: No Rage Gauge
010030ca
010032ca