Xbox 360 owners, traded in your Marvel: Ultimate Alliance disc yet? If you did, then you'll be missing out on the opportunity to fork over your Microsoft points in exchange for some additional characters. In April you'll be able to purchase either a 'Heroes' pack or a 'Villains' pack for 500 points apiece, or both for 800. Whoever said that Activision doesn't like to make a deal and pass the savings along to you?

The Heroes pack includes: Cyclops, Nightcrawler, Hawkeye, and The Incredible Hulk. On the flipside, the Villains group consists of Venom, Magneto, Sabretooth, and Doctor Doom ... which sounds like an 80s hair-band mega-metal tour. Both packs will include new achievements as well, breathing some life back into this game.

Hopefully this is a trend that'll continue for awhile, because we like adding some shelf-life and playability to our games. Of course, we're still waiting on additional achievements for Whacked!, but that's a different story.

This article was originally published on Joystiq.

Want in the Shadowrun beta?