Unlock Danger Rooms:Iceman Danger Room missions:Enter it at the Cerebro Files menu, and press the following buttons on your controller: Right, Right, Left, Left, Down, Up, Down, Up, Start?Nightcrawler Danger Room missions:Enter it at the Cerebro Files menu, and press the following buttons on your controller: Up, Up, Down, Down, Left, Right, Left, Right, Start ?Wolverine Danger Room missions:Enter it at the Cerebro Files menu, and press the following buttons on your controller: Down, Down, Up, Up, Right, Left, Right, Left, Start? ?Unlock costumes:Get all Weapon X files with a playing characterGet all Sentinal Techs with a playing character?Another six Danger Rooms:Accumulate all Sentinel files and Weapon X files with each character