Dead Rising 2 has been in the works for quite some time and now with the game being about a month from coming out, the developers have decided to give fans of the series an early treat in the form of a downloadable mini prequel called Dead Rising 2: Case Zero. Many thought that Case Zero would simply just be a demo for the full game however Capcom has put in extra effort into the DLC to make sure that it's much more than a demo.