Kula World is the best puzzle game I've ever played. Thanks to broadband I managed to download the game and get to emulate it.
Hopefully I'll win a copy on ebay. Otherwise I guess I'll have to chip my PS2, or get a PS2-PC controller and play it on here. I want to play this game again properly though.
http://playstation.hotgames.com/games/kulawo/review.htm shows what kind of puzzle game it is. It reminds me of how wonderfully fun a good idea could be.