i has failed
Didn’t spend much time, and also had no idea.. thought I still put up what I got: here
It needs python, pygame and pyopengl to run (..hm, for the real LD, I have to find someone who can make me a py2exe and py2app version of my entry). You can run until you touch the turnip if you want, but nothing will happen even then. Except for the unicorn, it also totally fails the theme and at no point I was even close to an idea 
The good things about this mini LD for me though were, I think I know now how I could easily do one of those motocross games.. just need to use 2 or 3 collision circles instead of a single point as I did here, and some spring forces between. Also, I was surprised how easy it was to read SVG files - took me a total of 5 minutes to develop loader code for it (first few lines of line.py).
