The anxious, easily aggravated ghost monster has sealed himself permanently in his physical host, terrified of the possible consequences of leaving. He escaped most of the violence of the Fear, which was the fighting and confusion that immediately followed the Glitch, isolated in the Dump as he was before. He chose to never leave the place, suffering only minor damages to his form. Through the years, he was constantly soaked through with garbage, water, and the dust that washes down the river and into the Dump from the Dead Swamp. As a result, he has become an abominable horror of fungi and corrupted magic, bloated and leaking ashen stuffing wherever he treads.
The sludge of the Hunger drips constantly from the sharpened teeth that line his gaping middle, and pieces of trash have fused with his canvas skin, giving him almost flawless camouflage. He hunts with absolute prejudice, only running from Undyne and Sans, when they choose to visit the Dump.