Just finished it also. Great job!
The moving platform mechanic was fun, but only when it was possible to "follow" it. Some very fast moving platforms were impossible to stay on it, making the only possible way to get through by spamming the jump button.
Also, I really liked the reload level button! Made it so much easier when I screwd up, and it was an instant retry! No downtime whatsoever! Very nice!
Also, if possible, make the resolution a little higher? The window was a little too small for me. No problem if it's going to get pixelated, but I think the field of view is quite important.