When Scratch starts to move, press the space bar to do a lap. However, you will have to time when to press the space bar. When Scratch is touching the red or blue line, press it. Don't try to cheat; I already took precautions against it.. To skip the intro, press the down arrow.
This project took me a long time to create because of my programming. Anyways, I hope you enjoy it. Don't forget to like, favorite, and comment.