X-Men: The Official Game Cheats (Xbox)

Enter it at the Cerebro Files menu, press Down, Down, Up, Up, Right, Left, Right, Left,
Start.

Enter it at the Cerebro Files menu, press Up, Up, Down, Down, Left, Right, Left, Right,
Start

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.

You can unlock eight danger room missions. You must get all the Sentinel files and Weapon
X files with all the character.

At Cerebro, enter UP, DOWN, UP, DOWN, LEFT, RIGHT, LEFT, START.