Last year, a group of Nintendo enthusiasts found footage that was used in a 1974 arcade game by the company called "Wild Gunman." The unearthing of rare Nintendo items continues with the recent discovery of 16mm film that was used in a 1976 Nintendo cabinet called "Sky Hawk."
The game projected footage of remote-controlled fighter planes that players used the cabinet's guns to shoot down. Each game lasts one minute. Players who are able to successfully down eight or more of the planes during that period win a free game. Pretty interesting for a fifty year-old game!
Here's a link to a Nintendo Life article on the discovery: