I played either 2 or 3 at E3 one year while standing in line for the Assasin's Creed Brotherhood demo (wow that was a while ago) a sony rep was going down the line with some PSPs to show off Patapon, but I really couldn't get into it (it wasn't on the tutorial so I was just kinda mashing buttons to figure out what was going on and was killed a few times until the rep came back and told me how to play more. Its a neat concept but I dunno if it's something I'd by on my own motivation.
