Actually, I live here in the states as well, and Super Putty was one of my favorite games growing up as a kid. It's nothing like Claymates aside from being a platformer, and it definitely has a high difficulty curve to it after the first few worlds, but I really enjoy it. I just recently even found out there had been a sequel that never came here to the US, so as soon as I saw a cheap PAL copy on Ebay, I picked it up.
I played it a little the other week and I still like the original better, but it's definitely worth checking out if you were to play the original and liked it. Shouldn't cost more than 10-15 bucks to pick up both on a good day.
