In the North American instruction manual for Demon's Souls, on page 5 under "Character creation," there are several references to the American television series "The Simpsons."

If one examines the picture in the lower right of the page carefully, they will see that the characters pictured are given names referencing several "Simpsons" characters. These include Bobo, the bear Mr. Burns owned as a child from episode "Rosebud;" Lisa Lionheart, a doll that Lisa attempted to market in the episode "Lisa vs. Malibu Stacy;" and Princess Kashmir, an exotic dancer first appearing in the episode "Homer's Night Out."

There is also a reference to popular American radio broadcaster Barret Hanson, otherwise known as "Dr. Demento."