Except for being a sandbox to play around in with your vehicles. For example, one thing I liked to do in Nutty Acres was take a helicopter/plane hybrid (folding propellor and folding wings) with a sticky ball, grab a cow or some other object and go all the way to the top of the level, drop the cow and play with it on the way down (e.g., catch with a sticky ball again, shoot missiles at it, stick it in the giant gears and try to break them, etc.). Of the 30+ hours I spent with the game, most of it was just playing around and seeing what I could do.