"Harmonic Sonic" is the eight episode of the Sonic the Hedgehog television series. Despite airing as the eight episode of the series during the show's original run, it was initially produced as the ninth episode of the series. It was written by David Villaire and first aired on 6 November 1993.
When Robotnink launches a Spy-Orb that will uncover the Freedom Fighters' Knothole location, Rotor launches them up to the orbiting spy-sphere aboard a home-made rocket powered by Robotnink's discarded booster engine that fell in the Great Forest. Once aboard the heavily guraded sphere, Sonic and Rotor must find the spy sensors before they locate Knothole.
In one scene Antoine's eyes are smaller than usual, also the fur around them is beige.