For those of you who don’t know what Katamari is, check this article over at Wikipedia.org.
Haven’t completely finished the game though, currently playing the Make the Moon stage, and only managed to make a 792m12cm21mm katamari. Ah, what fun! :P
Update 1: KatamariDamacy on the web offers loads of Katamari goodies to download, from desktop wallpaper to DIY papercraft bookmarks and postcards.
Update 2: Funny Character Cafe has a paper-craft version of Katamari’s Prince for you to print-out and make along with some other.. funny characters. And ctrl-alt-doll has got some irresistible figurines of Katamari Prince and his cousins.