Maduppy (2016).
Maduppy Blook is the unofficial real name of Mad Dummy from the Undertale video game series. The name is a combination of the word "mad" and "duppy"; which describes a "malevolent spirit or ghost".
The name and corresponding design was first uploaded at Deviantart on February 18, 2016.
Backstory
Maduppy is one of Napstablook's relatives who once helped out on the snail farm, but then left to become corporeal, which was a fad within the ghost community.
While possessing an object isn't a difficult feat for a ghost monster, becoming corporeal is and takes a strong will, which is why Maduppy had to leave the farm and find a place of solitude to meditate.
While he was a relative, he did not have much of a relationship with Napstablook. This in combination with his unannounced disappearance makes Napstablook not recognize him as the Mad Dummy living in the junk yard.
Personality
Maduppy has a short fuse and gets easily offended. There never seems to be a right answer you can give him, as he seems to be in love with the concept of being angry. He is so self-involved, he doesn't even bother to remember his relatives' names.
Because he has this personality, he lacks the focus needed to become corporeal and has lived in the junkyard for a long time.
Family
- Blooky (Napstablook)
- Mattephantom (Mettaton)
- Unsuspectre (Dummy)