Now let me start by saying that I'm only a little way in to the game, that being said I think that this game is a lot of fun but it put a very definite emphasis on time. If you are a player that likes to take your time and explore this is not the game for you. Every time you change areas it reminds you just how little time you have left before you lose. The zombie killing is fun, as are all of the different animations for the kills, I just wish that you could do things at your own leisure. The second complaint I have is that there are no autosaves, I have already lost an hour or so of playing time because I didn't save my game in between mad dashes from point to point. Overall I would say this game is worthwhile but only if you are the type to play a game through more than once. If that is not you then you should probably take a pass.
I love zombie games. Dead Rising 2 is GREAT! There are a few minor draw backs. Named GUNS are not as lethal as you would like. 2nd) Too many message pop up when you are in the middle of escorting survivors to safe house.
3rd) Boss fights are impossible. Without clues on which weapon will work. You will get killed very fast.
Remember to SAVE, SAVE, SAVE your progress before you fight a boss. Arm the survivors with CLUBBING WEAPONS. Don't give up your guns. You'll need they to fight the bad guys with guys.
Last minor problem, you should be able to horde weapons in maintenance sheds, but you can't.
Over all game HAS REPLY VALUE. GREAT RENTAL and a real KEEPER.