Get as many points as you can ( If you touch the enemies with your cursor you get points, if the enemies touch the orange circle that follows you than well, you lose points... holding space - holds the orange circle in place. z - toggles the orange circle's trail on/off. x - shows/hides options for orange circle's trail.
I based this game on my sling thingy thingy. this game took me ~8 hours to make.