In this game there are several balls lying somewhere at the top of the level on a bar. You can draw lines with your mouse. The lines will become solid and balls will not be able to pass through them, but will roll on them, bounce off them or do whatever else the physics laws make them do. When you click on an arrow next to the bar the balls lie on, the bar disappears and the balls start falling. Your goal is to make all balls get into the target jar.