click onto the marle and drag your mouse to the direction you want the marble to go, drag it farther to go faster, and nearer to go slower. if you get stuck, either click the flag again or point one marble in the opposite direction as the other press the h key to play with only one marble
This is a test it is only meant to be a 15 minute project to see if I could use this in something feel free to remix to make it better or use it in a project with appropriate credit