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
Ultimate X-Men killing Beast, who was killed when a Sentinel attacked the White House during Emma Frost's public disclosure of her school. This made Beast the first dead Ultimate X-Man. As a side note, "Ultimate X-Men" #40 features what Marvel claims to be the first marriage proposal in a comic book letters column, which is answered in "Ultimate X-Men" #44 with a positive response. The third "Ultimate X-Men" writer was Brian K. Vaughan, best known at the time for his work on "". His run was marked by the relative absence of Wolverine as the main character and the re-imagining of second-string