Katamari

Katamari has got to be one of the most innovative games ever made for the PS2. The story is that the cosmos (stars *duh*) have all disappeared, and you, Prince to the King of the Cosmos, must go to Earth and roll up as much stuff as you can to create new stars. Levels progress from inside rooms and houses, to streets, to cities and then to countries, eventually putting making a whole new cosmos.

This has got to be one of the most fun video games to play by yourself or with a friend in the 2-player mode. The gameplay is excellent with good music and sound effects (people yelling, cars honking, sumos, errr... sumoing?, etc...) The levels are always topping each other in innovation and are always fun to play over and over again.

The two player gameplay is great too. You go head to head against a friend and try to collect the most stuff in a certain amount of time. The biggest katamari can even roll over the smaller one and capture them for a bit while the captured player shakes their analog stick trying to break free.

The sequel to Katamari Damacy in We Love Katamari. We Love Katamari is very much like Katamari Damacy but it has 2-player co-op where you both try and roll the same ball (very confusing) and also new levels of multiplayer as well as a totally new single player campain where you eventually roll up every continent on Earth.

There is also a PSP version of Katamari called Me and My Katamari