I love the graphics. Id actually love to see this game on the Wii as well. This is a fun game that is family friendly. I love the interaction and interplay with the bad squirrels.
One idea I had to add interest to the higher levels might be to have the occaisional bird swoop through and snatch the nuts. All in all, though, a very fun and original game.
Minhala about Nut Chuckin'