Make sure the dot is on the back of the head. When you press the green flag, it'll start creating the snake. When you press the Space Bar, It'll change colors and add a stripe. Press the stop button and it'll delete the snake apart from the head and base dot. After a little there's a limit (I didn't want it to be there) for how long it can be. After you reach the limit, you can only change the color, and the base dot will just follow your mouse without doing anything. Wow that was long.
