I really should post something about this game. It's ... unique. In a good way.
Let's start with the premise. You play as the Prince of All Cosmos, son of (guess who?) the King of All Cosmos. The King of All Cosmos has unfortunately destroyed all the stars in the sky, and the moon too. (He was possibly drunk at the time.) So it becomes your job to help restore the skies. You do this by being sent to the Earth and rolling up stuff into your katamari. (Of course.)
What can you roll up into your katamari? Well, you start off with things like coins, dice, caramels, chocolates, etc. As you gather more stuff, you can start rolling up larger objects like socks, shoes, cats, bikes, cars, houses, airplanes, supertankers, skyscrapers, and islands.