Okay, my mind is made up, and let me say that I had two games in mind. One was a pac-man game on the "Namco Classics II" rom that I had never saw before MAME. It is 3D'ish has a bunch of cool power ups and warps, is a lot of fun to play, AND you can play two players simultaneously. The problem is that you can keep popping in quarters and continue with the same score, so I gave it the axe.
Then after much soul searching, and thinking back to my childhood favorites, I double checked the list of games already played and came up with.....
wait for it.......
wait for it.........................
Paperboy!