The title of this soundtrack is rather misleading. It's not a collection of songs throughout the series as it might imply, rather, it's the soundtrack for the PSP version with a few songs from We &hearts Katamari that weren't on Minna Daisuke Katamari Damacy. It even has a song from Tales of Eternia Online (Disc 2 #5). The overall quality has taken a small hit (much of it is simply rehashed melodies from the previous two games), but it's still well worth a download. KotN particularly recommends "Katamari on the Funk."