X-Men - The Official Game - Gamecube
Unlock Danger Room Missions:
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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, you must
collect all Sentinel files and Weapon X files with each character.
Cheat:
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how do you unlock everything my cousin want dark phoenix how do you get
her and all the character ok please write me back ok bye cheat