The A.V. Club notes, "The episode begins with an attempt to summon the spirit of Maude Flanders, who was bumped off in [a] previous season's highly publicized 'Alone Again, Natura-Diddily'."[REF]
Billy The Kid, Jesse James, and Kaiser Wilhelm II appear as the zombies in the segment "The Fright To Creep And Scare Harms" [REF].