After starting, click on a place in the white area to start in that location.
USE THE ARROW KEYS TO MOVE.
You can use the sliders to change the shade, and size of the pen.
You can click on 1, 2, or 3 to change the speed that the pen moves.
Click on the colored boxes to change the color of the pen.
Press space to reset, or "shake" the Scratch-a-Sketch.
Simple, fun project.