and in the first Sonic film, her character wears a yellow jacket. Then, for Sonic 2, she wore a black and red combination. In her character poster for Sonic the Hedgehog 3, she's wearing pink.
Each Wisp had a unique power-up that Sonic can used, based on its color. For example, the Yellow Wisp lets Sonic turn into a drill and crash through walls, Orange turns you into a rocket that ...