Unlockable - Unlock Danger Room Missions | |
| There are eight danger room missions. You unlock the first three as you play through the game. To unlock the other six danger room missions, you must collect all Sentinel files and Weapon X files with each character. | |
Password - Codes | |
| Enter the codes in the Cerebro Files menu. The code can be entered using either the control pad or control stick. | |
| Training mission for Nightcrawler. | Up, Up, Down, Down, Left, Right, Left, Right, Start |
| Training mission for Iceman. | Right, Right, Left, Left, Down, Up, Down, Up, Start |
| Training mission for Wolverine. | Down, Down, Up, Up, Right, Left, Right, Left, Start |
