THe game Katamari Damaci is definetly one of the more unique games out there. It revolves around a dung beetle with a special ball that travels the world tying to make the biggest ball he can. THere is a comical aspect to the game since you can pic up everything in the level, once your ball gets big enough. For example a whale or a giant radar dish, but you have to work your way up to this level by grabbing people then cars and trees then houses. I like this game because it pokes fun of american materialism. It has the perfect american mentality of i must obtain every material good to be happy. I have played this game, while it is quite fun the controls are a bit difficult to get used to and the graphics aren't the greatest, but great gameplay and the soundtrack in hilarious. I love Japanese pop music. Also they just came out with a sequel to this game called Beautiful katamari, you can play this on X-BOX 360. It has customizeable characters, more levels and better graphics.
http://www.youtube.com/watch?v=azhD59HR5U4&mode=related&search=
http://www.youtube.com/watch?v=hAEZ19QsKhc&mode=related&search=Katamari%20Damaci