Werner Werman is one of the bosses from the video game, making his debut in the series including his home made soup can tank. At difference to the game version, Werner remains of his normal size while in the game is bigger than Cuphead and Mugman.
The title of the episode is a reference to the classic Looney Tunes cartoons phrase of 'That's All Folks!'. The episode is also the classic troupe of cat and mouse chase make popular by cartoons like Tom & Jerry and movies like Mousehunt (1997).