Very good game. I loved the riddles, very amusing, and not too easy or too hard. And the art is quite nice too.
- Make the coins a bit easier to find. They are not impossible, but takes some time and the player might lose interest.
- Give some clue that you can go up to the next rooms by clicking in the edge of the screen, I spent 5 minutes searching for stairs, arrows or something to get to a different place.
Anyways, great game!