I was able to do it...
"DarthKemenner Levelbug14 Nov. 03, 2008
there is a bug in level 16 whatever you do, no matter what, you will never beat that level because when you complete the ball nothing happens even if your ball looks exactly as the one on the picture. "
This game is repetitive. It does not deserve to be the most popular and highest-rated game on Kongregate. Plus, I have seen extremely similar games all over the internet.