Sonic Underground (1999)

Episode Overview

Title: Sonic Surge Plot: Robotnik devises a new formula called Sonic Surge, designed to boost his speed to match Sonic's, enabling him to finally capture his rival. His scheme works initially, and Sonic falls into his trap. However, when Dingo starts experiencing the tonic's adverse effects, Sonic seizes the opportunity to escape, taking a vial of the serum with him. Meanwhile, unaware of the tonic's dangers, Manic and Sonia, jealous of Sonic's incredible speed, choose to try the tonic for themselves in hopes of gaining the same abilities.