Pong, based on the virtual game ping-pong which is based on the virtual game tennis. You hit a ball back and forth with your opponent. Now how can something so simple like that be so much fun? I have the old Radio Shack pong game from the 70's and its just as fun today with the old fashioned controls and the old sound affects and graphics. It really takes you back. Pong is known as the world's oldest video game. It is. I think a good idea would be to have a newer, more updated Pong with newer graphics and newer sound affects. Still wouldn't be that much to the game, just bouncing ball from one side of the screen to the other, but it would be just as fun.
