Use the arrow keys to move the marble. Press space to disable the pointer. Press a to bring the pointer back. If the pointer is pointing off the road or in some wacky direction, you're close to a checkpoint. Make sure you're on the road when crossing checkpoints, or else it won't count. The scrolling isn't perfect; you can still see some parts of the track that move with you at times. Feel free to post times in the comments! If this project isn't working properly, try downloading this. Marble Racer XY Scroller with artificial intelligence released! http://scratch.mit.edu/projects/vortex19/705272 Think you're good at this game? Try racing my recording. http://scratch.mit.edu/projects/vortex19/705406