Sonic Tonic

Sonic Underground poster
Sonic Underground
17th September 1999 Season 1 Episode 15

A speed enhancing fluid deemed Sonic Tonic is created by Robotnik to make him as fast as Sonic so that he may finally catch him. Robinik's plan is successful and Sonic is captured, yet when Dingo begins to feel the side effects of the tonic, Sonic is able to make a run for it with a vial of the tonic in tow. Unaware of the side effects of the tonic, Manic and Sonia, envious of Sonic's speed, decide to use the tonic on themselves.

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Friend or Foe? still
Season 1 · Episode 16

Friend or Foe?

The Hedgehogs converge on the Floating Island, in their latest attempt to find their Mother. Sleet and Dingo also have an interest in this island that involves the Chaos Emerald, which is the island's life-force. But, before either party can achieve their goals, they have to get through Knuckles, the floating island's stern guardian.
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01 Jaleel White profile Jaleel Whiteas Sonic / Manic / Sonia (voice) 02 Garry Chalk profile Garry Chalkas Dr. Robotnik (voice) 03 Maurice LaMarche profile Maurice LaMarcheas Sleet (voice) 04 Ian James Corlett profile Ian James Corlettas Cyrus (voice) 05 Sam Vincent profile Sam Vincentas Sonic (singing voice) 06 Stevie Vallance profile Stevie Vallanceas Sonia (singing voice) 07 Jean Chalopin profile Jean ChalopinCreator
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