So awesome: This 1975 Mego marble-snapping game is called "Ball Buster."
I am unsure about whether this was a real game and real ad, or an SNL skit or something. Because there's background laughter, but maybe the ad was taped for YouTube off some show and the audience was laughing? It sure seems real.
In the end, Ye Olde Seventies husband actually calls his wife a "ball-buster," and she turns around and winks at the camera. So if it was real, the company was totally in on the ribaldry of the name. And if it was fake...well, it's not quite funny enough to be fake, is it?