Just got this game the other day and it is a RIOT!

The way the gameplay is setup you definitely think it's for a kid but if you play for just five minutes and hear some of the adult comments that are made from the characters...this game ain't just for kids.. lol.
It reminds me of GTA in the way the game is setup. You've got your missions that you're supposed to do but unless there's a timelimit on it, you don't
have to do the mission until you want to. You can just drive around town, explore, do bonus missions and try to find out all the little gags and extras that they threw in. For instance, you can buy different outfits for the characters that you play, different vehicles, etc. I made the mistake of purchasing "Homer - Casual" which is basically just Homer in his underwear. lol. So I went around the level running around in nothing but my underwear. LOL. That's the kind of thing that'll keep you up at night. <shudder>
This game is seriously fun though. Most of the missions are pretty easy. Only once or twice did I have to retry a mission. That's fine though, this game is meant to be fun and it is a blast!
Right now I'm on Level 3 playing as Lisa and it looks like the plot line is finally starting to come through...should be interesting where it goes from here.