Press and hold space to start rollin'(mouse for directing the ball). Press and hold x to do a spindash(longer you hold it,the faster you will go once let gone of x key). Press 1,2, or 3 to start the radio and play a few tunes. Z to stop whatever music track is playing.
I was going to make a rolling ball racing game,but I got a really good idea when I started making start up and slow down running physics into this game(or should I say engine?). 1.1 Update: Changed some sprites. Added the Sonic CD special stage music tracks for the radio.