Hands-on at IGN.
Ten words: Motorcycle with chainsaws mounted on the ends of the handlebars.linkyvideo (featuring said chainsaw bike)
Oh, and 7000(!) zombies on screen at once....
If you thought the hundreds of zombies on screen at one time in Dead Rising was a lot, prepare yourself for a whole lot more. Dead Rising 2 will offer over 7,000 zombies on screen at one time. I saw it and it looks exactly how you would expect an entire city block filled with undead to appear. It's not just a visual trick either. Capcom proved this by hopping on a motorcycle and tearing through the crowd, leaving a trail of death in its path. Run back through the path and you'll find that all of the dead zombies are still there. For the sequel, the bodies won't disappear until you leave the area.