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 Legends II: Rise of Apocalypse characters return from "X-Men Legends", and select members of the Brotherhood of Mutants are also playable. Some non-playable X-Men and Brotherhood characters appear during levels. In some instances dialogue throughout the game can be character-to-character specific, depending on the player character's alignment and relationship with the non-player character. "X-Men Legends II: Rise of Apocalypse" was announced on October 21, 2004, exactly one month after the release of "X-Men Legends". It was shown at Electronic Entertainment Expo (E3) and San Diego Comic-Con in 2005. It was first released in North America on September 20, 2005 for the Gamecube, PlayStation 2, Xbox