I picked this one up yesterday and played for like 6 hours straight with a couple of my buddies on xbox live. You can do the entire game co-op. Its a shooter with heavy RPG elements, has a very awesome level of difficulty (at least with three people it does, it gets harder the more people you have) and is totally amazing. I highly, highly recommended this if you like RPGs, shooters, and Co-Op games. Very very fun.