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.
Thanks to Revolution readers Dan B. and pandora!
Explore the galaxy in the franchise's first open-world game.