atari2600 land picked up one of his older releases and sort of improved it.

Release notes:

Basically the same program, only I fit it in 4k, well, sort of. The computer player is kind of stupid. I’d like someone to go through the code and redo it so I have more room to make the computer AI smarter.

x=player 1 ; o=player 2/computer
game 1 = 2 players (x goes first)
game 2 = 1 player (computer AI, computer goes first)
game 3 = 1 player (computer AI, you go first)
to switch between the games, press the select switch.
to start a game, press the reset switch.

during a game, to go to the menu, press the select switch.
It’s totally in black and white (there’s no color.)

http://www.atariage.com/forums/index.php?showtopic=111419&st=25