The following are known Action Replay Codes for X-Men Legends on Nintendo GameCube (GCN).

These codes are for the European version of the game.

Master Code – Must Be On
XPT1-G2HJ-V1JXA
YHZX-BQ8Q-43KYE

Infinite Health Packs
EKVT-FRMG-NFFZY
0X93-RA22-NTJ56

Infinite Energy Packs
AR7F-NMDG-W3U5V
BDZT-91PY-6YE3W

Max/Infinite Tech Bits
3M9V-T8TQ-DCB2H
7RNX-90GV-BEDH5