First, drag the sliders to the color that you want the outline to be. Second, click the stage and draw a shape around the red dot in the center. Finally, press space, but be patient.
This time, I gave it 24 points of reference. It might lag, so be patient. You'll notice that the sprites are hidden. I thought it would look nicer. However, there was a problem; hidden sprites can't sense when they're touching another sprite, so I had to just set the ghost to 100. Please comment, (and if you love it, "love" it) because I really want some feedback! Remixes are welcome, as long as you give credit of course. Added some comments so you can sort of understand what the heck is going on in my scrips :P