I love Katamari, don't you?
The Katamari series has left die-hard gamers scratching their heads ever since it appeared on the PS2 in "Katamari Damacy". You basically roll a ball of fly paper around the world until enough things have stuck to it in order for it to be star-worthy.
This was my first experience with the series, so I wasn't sure what to expect. The intro quickly gives way to the "Egg School", where you learn how to roll Katamaris (clumps). The Katamaris pick up everything it comes into contact with, as long as it's small enough to be engulfed. Snowballing occurs, the Katamari grows to a ludicrous size, and it gets hurled into space by the King Of The Cosmos. This series of operations is repeated in a vast number of elaborate landscapes that take place in a Japanese suburb. There's a toy shop, a burger joint, a park, etc., and everything starts out from a tiny perspective; only after time passes do you see how the world is laid out.
I was overjoyed with the game in it's entirety. There's lots of extras, like lots of unlockable characters, a data base that stores a profile of each of the thousands of items you can collect, and the levels (well, it's really just one big level) is mind-blowingly vast. Everyone needs to discover this game.