When you press the green flag, press the SPACE bar to start moving. Press the RIGHT arrow to move clockwise and use the LEFT arrow to move counter-clockwise. If you hit the yellow, you don't have to press the green flag, just hit the SPACE bar again and it will automatically restart.
I can thank this all to the book "Code your own games" by Max Wainwright, and some credit to my brother for helping me understand and helping with mistakes that was not in the book. Thank you guys for my first scratch game :D
