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
X-Men vs. Street Fighter characters' appearances from the 1990s animated "X-Men" television series, complete with the original voice actors. The "Street Fighter" character sprites are reused from "Street Fighter Alpha 2". Similar to his secret guest appearance in "Children of the Atom", Akuma appears as a hidden character in "X-Men vs. Street Fighter". In order to create a level playing field between the cast of "Street Fighter" and the "X-Men" series' superheroes and supervillains, the "Street Fighter" characters were re-imagined with highly exaggerated versions of their special moves. For example, Ryu comes equipped with a "super Hadouken" that fills the entire screen. "X-Men vs.