X-Men: The Official Game: Cheat Codes

Mission Iceman Danger Room:
In The Cerebro Files Menu, Click Right (2), Left (2), Down, Up, Down, Up, Enter.

Mission Nightcrawler Danger Room:
In The Cerebro Files Menu, Click Up (2), Down (2), Left, Right, Left, Right, Enter.

Mission Wolverine Danger Room:
In The Cerebro Files Menu, Click Down (2), Up (2), Right, Left, Right, Left, Enter.

Missed Danger Room:
SuccessFully Complete One Act with the Desired Hero to Open One of the Danger Room Missions Or Complete Three ACTS to Open All Three Bonus Missions Danger Room.

Bonus costumes:
Collect All The Weapons X (Weapon X) The Desired Hero To Open A Suit.