WALLBALL is for upper-echelon players who've seen all there is to see in "flatland".  You're not two-dimensional-why should your game be?   

Break through the "flat" habit and experience a new dimension in video games. Play with the speed, control, and skill of handball, but without leaving home. Start slow or start fast, but don't be surprised if WALLBALL gives you a good workout!

WALLBALL - 9 levels of 3-D racquet-and-ball simulation for the Atari 2600 and Sears Video Arcade.