Prototype is a doll-like blocky robot who has white plastic casing. He has six horns, four being placed on their head and 2 on the lower part of their face, like mandibles. He also has hands with 4 claws, which along with the horns are pink, yellow, blue, and purple. Parts of their metal insides are shown through broken off bits of their casing. Prototype can easily remove his faceplate. He is canonically autistic and bestie boos with Miché.