Optimized!
Progress going good, just optimized the speed of my game around tenfold, and decreased the levels filesize by a similar number.
lovely screenshot.

As you can see, 2 layers of cave (foreground and background) that can be switched ingame for awesome platforming.
Also, a neat motion blur, a stylish edge tracing, and a halfdecent overall look
Other not so obvious features include my very quick and very convenient mapeditor that I created to generate the maps, the fact that there are many screens such that as soon as the player goes off one edge, he starts on the other edge of the next screen.
Similarly, you don’t see how cool it is to go around stuff in a 2D platformer. I assure you, it is quite cool.
Looks great, keep it up!!!