OK, first things first. The game is absolutely gorgeous, and is one of the prettiest flash games I've ever played. The music is perfect. Artistically, the game is a triumph. What lets it down somewhat are weirdly unresponsive controls. A platformer needs precise, exact controls so you can make those crazy jumps and such...Everything in this felt kind of swimmy and slow to respond. The puzzles are fun, though, and as I said, the game is gorgeous. If the controls were tighter, this would be an easy 5/5 for me.
Thanks :)