X-Men (Game Gear video game) mutant abilities drains the energy from the player's character. A new playable character is unlocked after finishing a level, including Storm, Rogue, Psylocke, Nightcrawler and Iceman. There are several foes from the X-Men universe to defeat including Callisto, Sauron, Sebastian Shaw, Omega Red, a Brood Queen and Magneto. Each boss has their own stage based on various diverse settings from X-Men, including the Morlock Tunnels, the Savage Land, the Hellfire Club, Madripoor, the Brood homeworld and Avalon. These levels are often labyrinths of either technological wonders, biological wonders, or a mixture of both. As more X-Men are rescued, these allies
Astonishing X-Men lies mostly on Scott Summers as a lead character. Through the use of a Ghost Box, a device which allows characters to enter into a parallel universe, an alternate reality in the X-Men continuity is explored. In the timeline featured here, the X-Men have waged war on Magneto to free the subjugated human race. In his dying breath, Magneto cracks the planet causing certain doom. Xavier, recast as Savior in this timeline, and other Marvel super-geniuses create a device to save their planet by harnessing the powers of mutants. Savior scours the multiverse with a Ghost Box collecting various incarnations