I've got a 6-player X-Men Arcade cabinet and I was wondering what other boards might be compatible with it. Can I use any Jamma compatible board? Will the dual monitors just mirror?
Below is the answer that was answered and accepted.
The board seems to be using standard Jamma connector for Player 1 and Player 2 except for the -5V and the test switch. Player 3-6 controls are using non-standart sub-harnesses.
Practically any 6 player game which doesn't require -5V should work. But you may need to modify those sub-harnesses. I didn't see the details of the arcade monitor in the link you provided. You should check refresh rate of the monitor, too.