The Incredible Quad is an alternate superhero identity of Starfire that she assumes in the episode, "Leg Day." She takes on this quad-based identity because of her new allegiance to the League of Legs.
Incredible Quad wears a bright yellow-colored suit that goes down to her hips with the logo of League of Legs on the front center. She still wears her grey gauntlets and top and wears bright yellow ankle boots. Also, her quads are a lot more pronounced (smirk), and her pink hair seems to be a little longer (just inches) than in her normal suit.