PJ Monsters is one of those games that will have you playing for hours before you realize it...the best $5.00 game you will ever find.
For $5, so far I have definatly gotten my moneys worth (and than some). As far as the graphics go... I do wish they looked a little bit better, but for $5 I reallycan not complain.
PJM is by far my favourite PSN game. My wife would watch me play, but when I asked her if she wanted to play co-op, she said that she wasn't interested. But I finally got her to give it a try and within the 1st couple of levels she became completely hooked.
We've cleared both islands with rainbows on all of the levels, so we're now playing through it again and trying to get higher scores. When this game gets trophy support it's going to make it even more addictive.