Toriel is a major returning character from undertale who plays a minor role in UNDERTALE YELLOW. She interrupts a battle between Clover and a Froggit and attempts to guide them through the Ruins before a cave-in seperates the two.
She is a Boss Monster resembling a white-furred Nubian Goat with droopy ears, short horns, visible fangs, and long eyelashes.
Her outfit in from Undertale to Undertale Yellow has been changed: she now wears a red scarf with a knot, and her robe is now a different shade of purple. The robe is still emblazoned with the Delta Rune located near her chest.
Toriel's personality is, for the most part, unchanged; she is a caring mother figure that takes pleasure in guarding the Ruins and any fallen humans. However, she still maintains her stern personality, as is seen when she scares off a nearby Froggit.