Our local news agent used to have a single arcade machine outside the door when I was growing up in the early eighties. They started with a defender machine, f

Our local news agent used to have a single arcade machine outside the door when I was growing up in the early eighties. They started with a defender machine, fantastic game but really difficult and not super popular. That was replaced with with Galaga for a brief period, then Zaxxon. None of us really got used to Zaxxon. Defender was hard but learnable, galaga is an exercise in memory which was hard but you didn't feel like it was unlearnable. Zaxxon seemed arbitrarily difficult, especially the janky collision detection. The local kids got their galaga machine back when we complained to the news agent.