Iceman's Danger Room level
To unlock this level, put in the following code at the Cerobro Files Menu:

Cheat	Effect
Press Right, Right, Left, Left, Down, Up, Down, Up, Start	Iceman's Danger Room level

Wolverine's Danger Room level
To unlock this level, put in the following code at the Cerobro Files Menu:

Cheat	Effect
Press Down, Down, Up, Up, Right, Left, Right Left, Start	Wolverine's Danger Room level

Nightcrawler's Danger Room level
To unlock this level, put in the following code at the Cerobro Files Menu:

Cheat	Effect
Press Up, Up, Down, Down, Left, Right, Left, Right, Start	Nightcrawler's Danger Room level

X-Men: The Official Game Unlockables

Danger Rooms
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:

Unlockable	How to Unlock
Other 6 Danger Rooms	Collect all Sentinel files and Weapon X files with each character.