Now, I know this is a topic done to death, but let's give this some context. Just last night, I decided to finally go through as much as I could of Dead Rising 1. A friend of mine had lent me his 360 for awhile, so I had lots of time. I'd been playing and replaying the same frigging missions severals times, restarting the game again and again at a higher level.
Fortunately, I didn't mind this, as it made things a little easier each time. I started seeing a pattern of the same crowds of people trapped in certain areas, started provided weapons to them and made it back to the security room a little easier.
However, as I started playing through later in the game, I realized something: everyone is right about the timer. Not just the 72 hour clock on the game, but the timer on missions, most especially Case Files (the story). These are mandatory if you even want to attempt to continue the game.
The problem, though, is that if you want to rescue other people (with usually very bothersome AI), it's near impossible to do both. More to the point, it's defintely near-impossible to do both the first time running through the game. Hell, I had difficulty completing both after leveling into the 40s.
It's not that I mind if a game is challenging, but with a game that's supposedly sandbox-like, you should be given some freedom to explore, fart around and have fun (see also: Grand Theft Auto). But when you're in the middle of a mission and get a call from Otis that someone back in the security room is causing a stir among the survivors? It's ridiculous.
Now, I know that the upcoming DR is going to have some form of a timer. I hope that it's cooled down some so you have time to make weapons, explore the Las Vegas-like city and such. Let gamers "waste time" and explore. The only reason I'm even getting through the game at all is due to being nearly level 50 and reading some FAQ's. That is NOT a healthy way to play the game.
One thing that really bothered me relatively late in the game were the cultists. Not because they were hard to dispatch, but because at one point, if you're unlucky, they can spray mace in your face and take you hostage. You're down to your knickers, fighting them off with a stepladder and a sword and that's it. BUT, if you're captured? You don't get any of your stuff back, as far as I've seen. In fact, the only way out is back where the convicts in the jeep are...and you're just in your underwear. How is that rewarding to the player at all?
With all that said, I still love the game so very much that even the things that I - and everyone else - hate about it, makes me want to play it again and again. It never gets bored cutting a swath through a large pack of zombies with a small chainsaw.