I dumped mine and it's not in the MAME set
Did you send it to the MAME developers?
I did. I also dumped the other 3 ROMs on the board (the character ROMs), but those ones matched the known set.
Thanks NovaSquirrel, after I build the instructions ROM I'll post some screenshots for your approval.
The original Playchoice games are 100% identical to the NES releases (AFAIK), except for Mike Tyson's Punchuot (which includes a battery, saves initials and times.. but annoyingly, doesn't show it in it's attract mode). So pausing and everything is allowed. The instructions on the control panel includes this warning:
Note: Pressing START during game play stops the game. Press START again to continue play.
Here's an image of the control panel (single-monitor version) if you want to see: (if the link doesn't work, google "playchoice control panel")http://ci-cdn.23bits.com/_s/7/167/si-130924134637-960.jpg