Being one of the three Messy met in the underground, Messy likes Sans enough to trust him.
Watched him for Undyne because she was not dealing with Messy at all. While Mettaton wasn't active Messy would be let out of his cage to watch Mew mew Kissy Cutie with Alphys, he found it a little enjoyable, but, at the same time, very weird.
AUs involving MessyEdit
Puzzle Lover, Mac & Cheese Baker. Has a Pacifier.
Equivalent to Fell!Papyrus, He gives his brother a hard time by yelling. Doesn't have a Pacifier.
Basically like Carrot/ Orange Papyrus. Lazy. Has a Pacifier. Messy tells puns based on Type, so his hyper older brother, William, gets pretty annoyed when Messy has a pun in his sentence. He also tells DoomFlame Knock knock jokes through the door leading to the ruins.
Caretaker of the Ruins who is Shifted with Ailey, who is now Scar. Has Pacifier.