“Katamari Damacy is the title of an extremely strange, quirky game made exclusively for the PlayStation 2.
The game begins with the King of The Cosmos accidentally destroying all the stars in the sky. Obviously this cannot stand. He orders you (his one-inch-tall son) to go to Earth and roll around katamaris (some weird rubber balls with adhesives) to amass enough objects to create new stars. So the object of each level is to roll the ball around, picking up enough objects to make the ball a certain diameter within the time limit. Sounds pretty simple, right? Well it is, in theory. But this isn’t some austere environment you’re working in here. This is Earth. You’ve got mice and toy cars and spiders and people and all manner of things running around”. (Text extract from http://www.everything2.org/title/Katamari%2520Damacy).
Compare Katamari to Tunng video “Bullets”