X-Men: The Official Game Enter the following codes at the Cerebro Files menu: Bonus Nightcrawler Danger Room Level: Press Up, Up, Down, Down, Left, Right, Left, Right, Start. Bonus Wolverine Danger Room Level: Press Down, Down, Up, Up, Right, Left, Right, Left, Start. Bonus Iceman Danger Room Level: Press Right, Right, Left, Left, Down, Up, Down, Up, Start.