Awesome
Surprisingly fun, although a bit frustrating. I found the interface a bit annoying, where you had to keep going back to drag an item (although I guess I was randomly hitting the walls with a hammer...) but it worked well. There was one bug where I would drag an item, and then it wouldn't disappear until I dragged it again, but it was minor.
Well placed clues, wasn't too hard. Ironically, I got 5/6 pieces and 9 coins before I gave up and checked the walkthrough. I had even written down the code while still looking for the last piece. Turns out I missed the first one it mentions :P (being vague to avoid spoiling)
Good game.