Katamari Damacy and We (heart) Katamari were two very awesome titles that said "the hell" with fancy graphics and gave us something so addictive, so simple and so bizarre - the ability to roll up balls of random shit. The game could have been called "Dung Beetle Rolling A Ball of Crap" and I would've still thought the game to be very awesome.
Two other games, Beautiful Katamari (360) and Me & My Katamari (PSP) have also made it to market, but offer pretty much the same flare.
Now the PS3 is next in this largely-drawn-out series with the new Katamari Forever (Katamari Damacy Tribute in Japan). As the Japanese name implies, this is a little re-hash of some of the best levels from the game series, as well as some new ones (At least to me...maybe some were from the 360 version, but I wouldn't know.)
Having not playing the previous games in some time, it was great to go back into the mindlessly-rolling world of Katamari again. And while the game is still really fun to play, there are still some issues that irk me; random lag times during gameplay and pop-ups plague the game at times. Overall, though, the randomness and quirkiness of the game pleases the child in me, so it'll be worth my time.