Norwegian makers Norwegian Creations, HK-reklame and Trondheim Makers wanted to advertise the Trondheim Maker Faire. They hit upon the idea of installing a Raspberry Pi and a screen inside bus stops so that people could play PacMan while they waited. They hacked into the bus power grid to power the whole thing and installed RetroPie onto the Pi to run the games. You can read more here and see a making-of video below.

Bus Stop Pac-Man – Behind the Scenes from Norwegian Creations on Vimeo.