"Don't look so blue, my deary~ ...I think purple is a better look on you! Ahuhuhu~"
Muffet is a merchant in Hotland. She sells Spider Donuts and Spider Cider. She attacks you if you don't purchase, although purchasing costs 9999 gold. Muffet is Undertale's Outrageous Vender.
Muffet is a spider monster with periwinkle or lavender skin, five eyes, six arms, and two legs. She wears a red outfit with pantaloons at the bottom, buttons in the front, a red ribbon across her chest, as well as two more ribbons in her hair. She is also shown holding two teacups with her top pair of hands and two teapots with her middle pair.