This is a Reversi game I got from some magazine a while back. It's probably one of the best looking Reversi games on any 8-bit computer with it's 3-D style board. I made some modifications such as changed how the pointer works, displays in several random colors, boots from Altirra disk and improved the game play a bit.
To play press Option or Select to change player then Start key to start. There is a flashing square you move in 4 directions to the spot where you want to place your piece using the joystick. Press the joystick button to set then piece down. You can play human v. computer, human v. human and even computer v. computer.