Hey all,
This would have been in the mid 1990's, and it was a DOS and/or windows game. It was on a floppy.
The maps were flat, not 3D, and I seem to remember it being predominantly grey and not having much color.
I think you took turns moving your black and white orbs through spikes and holes and other obstacles and mazes.
It wasn't really a marble madness clone - other than using spheres. I believe it was more of a turn by turn puzzle type game.
Thanks in advance!!