Written originally for the Atari, it has been translated for VIC, 64, and Apple. The VIC and 64 versions include two skill levels and a suggestion for changing the object of the game.
In One On One, two players go head to head in an attempt to knock down the wall their opponent is protecting.
One On One was written by Chris York and published as type-in source code in Compute! Issue 36, May 1983.