I'm not a console gamer but I found Beautiful Katamari (
Wikipedia,
,
XBox) quite entertaining: In a candy-colourful fantasy world, you roll around a ball ("Katamari") that has everything that is smaller than the ball itself stick to it, thereby growing in size. You do this, of course, for the King of All Cosmos who, in a game of tennis, ripped the universe apart and lost it to a black hole. You collect new material so he can make new stars, worlds etc. He helps you by constantly commenting on how incapable you are. Fun!