The shape buttons will add the corresponding shape to the graph. The Undo button will undo the addition of the most recent shape, it will not undo movements. The Finish button will act as an Enter button and will perform the attack if the player answered the problem correctly. The arrow keys will move the currently selected shape around the graph. There will be Up, Down, Left, and Right keys. | The shape buttons will add the corresponding shape to the graph. The Undo button will undo the addition of the most recent shape, it will not undo movements. The Finish button will act as an Enter button and will perform the attack if the player answered the problem correctly. The arrow keys will move the currently selected shape around the graph. There will be Up, Down, Left, and Right keys. |