Dead Rising 2 won't be released for another month. Starting today, though, Xbox 360 owners can download and play a prologue called Dead Rising 2: Case Zero.

In Case Zero, protagonist Chuck Greene and his daughter Katey have just fled zombie-infested Las Vegas. They stop at the small town of Still Creek for supplies but unfortunately it's swarming with zombies. Any clothing, PP, and Combo Cards you earn in Case Zero can be imported into your DR2 game.

Case Zero weighs in at 824 MB. Surprisingly enough, it's only 400 MS Points ($5).