Algodoo

This is just a simple drawing game that copies the movement of your pen, but in the opposite X and/or Y direction. In other words, when you move the pen up, you draw a line normally, but there is another pen that draws the same line but in the opposite direction (down).

You can select if you want the X and/or the Y axis to draw a mirror image by pressing the x or y keys. When the x or y boxes turn red, the reverse is engaged.

You can erase either your drawn image or the other opposite image by stopping Algodoo (with the Spacebar) then click on the Clear Trail button for either the left or the right image. Then move the mouse cursor over to the red circle (your pen) and press the Spacebar again to start another drawing. You can press X or Y at any time while Algodoo is running.

It takes a little practice to get used to it, so play with it and create your best scribble!