"Try to reduce to a minimum the gaming area without touching the balls that constantly bounce around the screen."
Here is the original version of Jezzball, an addicitive arcade game based on the old DOS game called Xonix.
The concept of Jezzball is basically the following: on the game screen there is a ball bouncing around without stopping. Using mouse clicks you have to reduce the gaming area to as small as possible WITHOUT TOUCHING THE BALL! When you do it, you will access the new level with more balls and more difficulty. Both the music and the sound do their secondary job well for an arcade game of this type.
This simple challenge of Jezzball complicates things and hooks you when you least expect it. It won't let you down.