"To give you a sense of how ridiculous this game can be, here's a sample mission: my goal is to go to the next town to drop off some supplies. First I have to speak to the mayor, who tells me I need to change out of my conspicuous clothes before he'll talk to me, so I have to find the tailor. No sweat, right? Back to the mayor.
Once I get my new clothes, the mayor says I have to rent garage space and talk to the sheriff. So I do those things, but the sheriff tells me I can't have the supplies that need to be delivered unless my buggy has guns. To get guns, I need to talk to the guy at the race track. After talking to the guy at the race track, I'm told I need to speak to another guy to set up races for the slips to get the guns—when I find that guy, he tells me to speak to his guy so he can schedule the race...
It's absurd and pointless. Why can't the first guy just set up the race? What designer sat down and said that the player should have to track down and speak to FOUR PEOPLE to get to the actual action?"
Definitely not worth my money, but ymmv.
For mindless shooting, there will be a new Serious Sam soon.