First prototype level working

I had a breakthrough this past weekend and completely scrapped and rewrote part of my collision code. Solved almost all of my problems, and with a little bit more work I had what felt like a very solid prototype. So I built a level... which caused all new problems. Such is game development, I suppose. Anyway, I fixed most of the major bugs and now I have a complete (albeit short) level.

Here are screenshots.

And here's a look at the editor.