Even though it's the Muppets, this is still an enjoyable title...
You play through tracks all based on the Muppet movies, and they are all colourful and fun. You don't have very many weapons, though it's still fun. You can unlock new characters and cars, all with their own powers. There's loads of different modes, like race, battle, and my favourite, is a puzzle sort of racing. You must figure out how to get your car through these often weird and strange levels, but it never fails to please. The game is also two player, which just makes it that much more fun.
If you're on the look out for any old skool games, get Muppet Race Mania if you can.