This ran over. I started at 4, when I was supposed to start ("started" loosely, I sat around being fucked up for half an hour) but instead of finishing at 6 I finished at 8. Oh well!
This is a prototype for a more complicated game I'm planning to make and name The Nervous System. In its current form, it's basically a slightly weird form of Snake.
Mac and Windows versions included. My score was 25.
EDIT: PS, source code https://bitbucket.org/runhello/nervous