A tall skeleton wearing an orange hoodie and dark green shorts. He is Sans's younger brother, and the setting is that he has gone mad due to the human's massacres. Additionally, he is covered in the dust of the monsters he killed, and he has a characteristic of always wearing his hood up since deciding to take the Genocide route. [Abilities] Gravity Manipulation: Turns the opponent's soul red (in Undertale it's blue, but in Underswap, red is depicted as the gravity-manipulated state) to forcibly control gravity. Bone Magic: Deals damage using bones through Bone Zones, Bone Throws, Bone Walls, etc. Blue Bones: A blue bone magic where moving results in taking full damage, but staying still prevents damage. Gaster Blaster: A blaster in the shape of a skeletal dragon(?) head that moves according to Papyrus's commands and fires an orange beam (it's orange because it's Underswap). [Personality] He used to be the type to slack off and get nagged by Sans—laid-back and good at cracking jokes, similar to the original Undertale 'Sans'. However, like the original Dusttale, he went mad after the genocide, becoming taciturn, speaking only when necessary, and showing no mercy.