It's a good game (bought it yesterday). So far, I breezed though easy and medium with golds. Hard mode flipped the difficultly into frustration mode. And don't get me started on Extreme! The lack of a local multiplayer as well as online play is a negative. All in all, I would have rather paid $10 for it, but the demo was addictive!
None of my friends have this game yet, PM me to share levels and leaderboard rankings!