... If You Bought Dragon's Dogma
A demo for Resident Evil 6 is now available on Xbox Live, but there's a catch. Only players who bought Dragon's Dogma can access it.
To do so, you'll need to redeem the code printed on the back of the Dragon's Dogma manual (either via Xbox.com or the blade menu) - and then start up Dragon's Dogma to play it. More details can be found over on the European Capcom Blog.
If you haven't bought Dragon's Dogma, there are probably better reasons to get involved than the Resi 6 demo. Despite some nagging camera problems and voice acting foibles, it's an extremely capable action-RPG and well worth checking out if you're a fan of hardcore open-world gaming. And stabbing Griffins in the face.