I'm blown away by how much of the extra stuff you pulled off in such a short time - complete menu with keybindings? Awesome effort!
I like the idea, though a platformer with limited jumps was more challenging than I expected, especially the tiny platform on the last level :D That said it was only really the last level that I had to retry several times.
My only complaint would be with the contrast between foreground and background elements. There were a couple of points, I think on level 3, where I accidentally walked straight off thinking I was going to land on something.