It's been done a 1000 times and 1000 times its always the same.
Try to stay inside the blue square as long as you can. Beat KST's score of 1300.
Get all the white circles and beware of the others.
Draw lines with the mouse to make the ball bounce to the goal. Once the simulation starts, you can invert the gravity with a mouse click. Featuring 48 mind challenging levels.
Ouch, that's going to leave a mark!
If you can do this you're a good tennis player.
Here is another large exercise ball to the face.
The classic wooden spoon prank with a twist!