The official game demo will also be available to download from Xbox LIVE Marketplace for free and allows players to play through the Washington, D.C. mission as either a pro-registration or anti-registration team.

Marvel: Ultimate Alliance 2 allows gamers to play as some of the most popular Marvel heroes and villains in an explosive action-RPG experience. For the first time, players can take full advantage of the Marvel Universe by combining dynamic super powers to create over 250 unique fusions, such as a fiery tornado between Human Torch and Storm, or a powerful beam splitter between Wolverine and Iron Man. The game also features deep character customization, including upgrading abilities, powers and boosts on the fly, as well as storyline choices that will influence character stats. Gamers can play on their own or with up to three friends in co-operative multiplayer modes, allowing them to assemble unique dream teams from an available roster of up to 30 playable heroes and villains, giving fans one of the most exciting action/RPG experiences of all time.