Great job, @zeeph_ ! Is this the first Pico-8 game you've written ?

BTW when the game is running in Pico-8 (not online), press F7 to save that as the cartridge image. Then repost your cart above so people can see what it's about. Be sure and put your user name in the code too. At the top of your sourcecode press ENTER and minus twice to type in that information.