1 **** Finish porting to Windows (should be only file.c and args.c, I think)
3 *** Switch over to sprites rather than totally separate structures.
4 * Rocks collide with each other?
6 *** Add a scripting language and separate game logic from the engine.
9 ** Switch to a TTF font and all ray-traced graphics
10 * Then we can run at the native screen size
12 * Deltas on high score display?