Yesss is an algorithm that comes from the website BuzzzTube who Ralph and Vanellope meet in the Internet. She is knowledgeable about Internet trends.
Yesss has blue skin and hair; her clothes and hair change depending on each new trend that is given in BuzzzTube.  Her most common appearance is with a mohawk swept to the side with a visor and pentagon-shaped earrings. She wears a blue, extremely tight dress with a circuit-like pattern along with a blue fur coat. She also wears blue boots with this outfit.