Simply press the green flag to start it. Also, press space to erase it. Also, Turbo Mode (Shift + Click Green Flag) makes it REALLY Wierd 2 increases rotation 1 decreases rotation
Shoutout to @raidplayz he's awesome. Also, check out my massive platformer speedrun. loom.com/share/b79b0db615bf4406978ba222fa494c20