Ralph Baer: They made a couple hundred Pong games during 1972 toward the end of the year. And it was thirteen thousand Pong games the next year. The competition made more than that, everybody was making knockoffs.

Al Alcorn: Bally copied it, but it was with permission because we had a relationship with them. Nutting just stole Pong and made a game called Computer Space Ball, because everything they had was Computer this—Computer Quiz, Computer Space, Computer Space Ball… Clever! Why didn’t they ask us? Everybody else stole it except Ramtek. When I say “stole it,” I mean just copied the circuitry that I designed. Ramtek actually looked at it and made their own electronic version. They made a copy, but they didn’t take the schematic.