This is Catgirl's costume change and she has the same powers as Catman( Eric Singer) and When Starchild says KISS costume change Activate and Catgirl's transformation phrase is like Nepgear from Hyperdimension Neptunia.
Fred, Daphne, Velma can be mad when CatGirl transforms into her costume and Catman can be blushing when he sees his mate in her costume.
CatGirl can be looking at her costume when she and Kiss transformed.
Her breast size change from a D to an E cup
When Shaggy and Scooby are moving the amps and Catgirl sits beside Catman.While her bodysuit, while still black, has purple and blue lining all around the torso and arms. The middle of the torso has purple mesh, allowing a vague vertical view of her stomach. She also wears thigh high boots with octagon patterns on the side at the very top; one filled it with purple and another just a white outline.