Beelzebub is a tall, immobile, fox-like demon with insect-like features, such as multiple arms, a pair of antennae attached to her ears, and a small pair of insect wings. She has yellow and pink-striped fur, and black markings that give a dripping appearance down her four arms and digitigrade legs.

Her hair and tail seem to be made of either honey or lava lamp fluid and glows bright pink, blue and orange, with her stomach also being a lava lamp. She has a pink stripe on her head.