I have a real love/hate relationship with this game.
I love the idea and how you have done it.
I love the music, I love the art.
What I didn't like was how I often felt like I failed a part of the gameplay because it wasn't intuitive.
I mean that I felt that I had to redo things because they didn't work the way I expected them to.
One example is that for some of the jumps after you jump up you can't see where to land. Climbing the ladder just didn't seem to be obvious either. Perhaps after the ladder is made you show a little up arrow? Not sure.
There is some real talent here, but a couple of arggh moments also.
I hope this helps.