Always a treat to see your artwork used in such horrific ways. Seems like you've come a long way in terms of coding, also. The music, the art style, the color (or lack of); they all fit together so well. My only critique is to watch your stage boarders; I can see just a little bit outside of the area that I was intended. It may just be with my computer, but when you expand the game, it gets even worse. I'd suggest you make your own stage on the top most layer that blacks out a good portion of the area outside the stage, that's what I do.
Otherways, congratulation on another wonderful game completed!