If the 20 playables weren't enough for you in Marvel: Ultimate Alliance (out of the 140 characters featured in the game), Activision has announced that eight more heroes and villains will be released in expansion packs via the Xbox Live Marketplace next month. And who, you ask?
* The Incredible Hulk
* Doctor Doom
You'll also have the option to buy either the hero or villain pack for 500 Microsoft points ($6.25) each, or get both for a better bargain at 800 points ($10). The expansion packs will include new powers, team bonuses and costumes (and of course, achievements -- ten more to be exact). Hero and villain gamer pic packs will also be available for 80 points each ($ 1). While the expansion doesn't offer new environments or bosses, comic book geeks should be satisfied nonetheless.