If you click the green flag, you'll see a rotating tear drop upper left corner. It's representing the current status of the pen. Click anywhere and drag to draw your favorite picture. Enjoy!
For Drawing Type 'r' key to toggle the rotation of the pen. Type 'p' key to toggle the pen status indicator. Type left or right arrow key to change the angle of the pen. Type up or down key to change the color of the pen. Type SPACE key to erase all. --- For Tiling (you can change to the turbo mode prior to this ops) Type '1' to redraw your figure Type '2' to redraw your figure in 2x2 Type '3' to redraw your figure in 3x3 You can press up or down arrow key to change colors while it is being redrawn.