Great game. I thought the game was very fun, well executed a good difficulty level and a great concept. The second half was just a brilliant idea that I'd never seen before. My only complaint was that I would've like a bit more of an ending, but still a great work. First platformer I've played and enjoyed in a long time.
The puzzles themselves are ok. But the finding the stuff is really annoying. There needs to be a clearer distinction between clickable places and unclickable places.
Great job. Very nice puzzles, with a good difficultly level and none of the invisible click spots like some games have. Also good story. Can't wait for Chapter 3.