At face value, this appears to be a very demanding skill level trying to get the balls to drop correctly. I did it differently.
I think I won the hard way. Trying to remember that an object in motion wants to remain in motion and an object pushed with a great deal of force wants to remain in motion for a very long time. Then I got the balls to drop correctly but I also managed to send a couple of zappers off on a nice flight of their own. So it was challenging but fun!
