Like the Warner siblings, Snacky can change appearance at will. SHe is very fond of Wakko's anime version which will be an ongoing gag. Wakko totally milks it when they want to. If you haven't seen the anime parody episode in the Animaniacs reboot, then you can check out the iconic scene here: https://www.youtube.com/watch?v=nHXw6XxP2d0&t=19s