Dead Rising is a must have for zombie-movie fans. The game makes you feel like you are in an apocalyptic zombie world.
The game is not only about killing zombies however, there are also humans that you must face. These crazies are the hardest part of the game in my opinion. The story evolves and you are given information for missions from the mall janitor, Otis through a transceiver. (This thing can actually get annoying during the games where you just want to check out the mall, level up, and take out a couple of thousand zombies). Anyway these bosses are not easy to fight and it takes some timing, etc. to beat them.
The game's level up mechanism works through taking pictures, performing tasks, and killing zombies (and bosses). You get what are called PP points which as you level up you learn more skills, get more health, get stronger, etc. You may want to just play the game for awhile to level up before trying to actually beat it. You have 72 hours before the helicopter comes to pick you up but you restart after you die. So the 72 hours begins all over again.
Saving the game is one of the only things that bother me. You have to use the security room or restrooms to save and this isn't usually convenient. If you do not save you die, and the game by no means is short. This is why I put the difficulty as hard. The bosses alone will get you if a hoard of zombies doesn't.
In conclusion I like this game quite a bit. It is one of the reasons I went for the 360 instead of PS3, I just like zombies that much. It definitely did not disappoint!