Spiraling into CEC research, I found this amazing article:
https://melmagazine.com/en-us/story/an-oral-history-of-those-creepy-ass-chuck-e-cheese-robots
Excerpt from a survivor of the pizza wars of the 80s:
“We were fighting Chuck E. Cheese for five years, and we knew we were better than Chuck E. Cheese. They were crap, and we were great, that’s what we believed. We were rivals. We don’t want to buy them out, we want to kill them! If they’re going to go out of business, let them go out of business. Don’t prop them up. Kill the rat! Let me plunge the sword through Chuck E. Cheese’s heart!”