It marks the second time the Mario universe is developed into a livable place, as the comic was made after Nintendo Comic Systems and before "Super Mario RPG". The only other pre-story Mario is within the animated and live action series relating to Donkey Kong. It is notable for its use of the many gameplay devices in the Mario series as elements of everyday life. For example, Mario plays a psychologist and treats the social anxiety of a Boo (a ghost enemy in the video game series that covers its face whenever the player is facing it).