X-Men 2: Clone Wars 1.0

Defend the alien race known as Phalanx and defend the Earth against all their attacks. Play as the following X-Men characters: Beast, Psylocke, Gambit, Nightcrawler, Wolverine, Cyclops

The technorganic alien race known as the Phalanx return and are seeking to take control of Earth by assimlating all of its inhabitants. They've also captured and cloned several mutants for experimentation. Only a select group of X-Men (Beast, Psylocke, Gambit, Nightcrawler, Wolverine, Cyclops) have avoided capture and, temporarily united with their oldest foe, Magneto, they must defeat the Phalanx before all of humanity is assimilated.