Marvel: Ultimate Alliance is an all-new action roleplaying game (RPG) coming to Xbox 360™ and Xbox® this fall.  For the first time ever, the world’s largest army of Super Heroes is under your control.  Create four-member strike teams, choose from over 20 playable characters, and interact with more than 140 legends in all. Become your favorite heroes and change the fate of the universe.

• Army of Super Heroes: Choose your favorite Super Heroes from favorites like Spider-Man, Wolverine, Captain America, Blade, Daredevil, Elektra, and The Thing. There are over 20 playable heroes in all. Create your ultimate dream team and partner, battle, and interact with more than 140 total characters from the entire Marvel universe.
• Varying storyline: Control the fate of the Marvel universe. The missions you accept, the objectives you complete, and how you interact with other characters throughout the game will have a direct impact on how the story plays out.
• Online co-op and competitive modes: Converge in battle, online or offline, against the world's most evil Super Villains. Switch between cooperative and competitive mode to partner or challenge up to three other players.
• Total team customization: Use a universal team upgrade system to balance your heroes' powers or customize each member to maximize their effectiveness. Create a team name, team icon, and establish your team's reputation as the story progresses. 

• Marvel™: Ultimate Alliance Forum