We spent hours playing 'pinball'.
a 'pinball' machine
(..) and buy plutonium. Of course. From a group of Libyans. They wanted me to build them a bomb. I took the plutonium and gave them a bomb casing full of pinball machine parts. DOC: Come on. Let's get you a radiation suit. MARTY: Jesus! It's safe now. Everything's lead-lined. I need that as a record. (..)1985 Back to the Future