NE146

@retrorussell Nah you can advance to the key in literally minutes. Like I said you have to do a little finagling.

1) Toggling F10 on & off will speed through it super quickly (moreso if you have a fast pc), although as you said you'll eventually come to a small patch of dots pacman never gets to. So;

2) You have to toggle the "ghosts always blue" cheat on/off and THAT alters the pacman's meandering somewhat, and that will make it hit the remaining dots eventually. Hit f10 again to speed it up. 

@NE146 Thanks!

Thanks for the info about Pac-Man-- I have been making a YouTube series on various cheats in MAME and how they affect the attract mode for various classics.  I'll give you proper credit for the Pac-Man one in my last video!