Hi everyone. I appreciate all the input! I'm reading up on AHK right now. I haven't really decided on a PC or OS or anything yet, so I'm still exploring.
But to be clear, my intention (or hope) is to have a hidden switch/button, maybe even IN the coin door like a test/service button, that would switch games, but would boot to the most recent game at power-up. Kind of liek a 60-in-1 in single game mode I guess. (Drake: A Jamma PCB switcher does a very similar function as I understand it-- it lets you choose the game you want without having to modify or get into the cabinet to switch the harness or board out.) The number of games would be limited as I have a couple cabinets but want to designate this one as a 4 player (3 button per) cabinet specifically and exclusively. If it's a 2 or less player game, I'll leave that on my other mame cabinet. Right now, it's a Wrestlefest with 4 players, 4 start buttons, 4 coin drops and 2 action buttons each. My hope is to get a J-pac style solution running with each player getting an added button to account for games that need three (NBA Jam comes to mind IIRC).
I know it's non-conventional, maybe even counter intuitive, but I don't want to switch game often, I just want to be able to easily when I do want to. Among my friends, we tend to have more fun playing the same over and over for score, etc, instead of just switching when we get bored or someone can't be beat. lol
I hope this is making sense!