Here is every conversation with someone who sees it running the first time goes:
Me: "What would you like to play?"
Them: "Do you have <Fill In Game That Evokes Strongest Childhood Memories for Them>?"
Me: "Sure, here ya go."
Them: "WOW AWESOME. HAVE YOU PLAYED THIS GAME? THIS GAME IS THE BEST! I REMEMBER WHEN..."
Me: "Be sure to put in a c.."
Them: "How do I get this to start"
Me: "Be sure to put in a coin and hit start"
Them: "Oh yea... Bleep Bloop"
Me: Exit scene right.
After that, they always usually play that one game for the first few times, then remember there were others.
So my answer, its always some game that someone wants to play that they have a fond memory of, whatever was in their local gas station or whatever.