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Release Date: September 17, 1999
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Sonic Underground

1999

Sonic Tonic 1 Season 15 Episode

6.8

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.

Country
France
Genre
Animation
Released
30 Aug, 1999
Main Cast
Maurice LaMarche , Garry Chalk , Sam Vincent , Stevie Vallance , Jaleel White
Supporting Cast
Ian James Corlett
robot as menace rebellion triplet hedgehog band
Episode #1
Beginnings (Origins, Part 1)
Episode #2
To Catch a Queen
Episode #3
Mobodoon
Episode #4
The Price of Freedom
Episode #5
Underground Masquerade
Episode #6
Tangled Webs
Episode #7
The Deepest Fear
Episode #8
Who Do You Think You Are
Episode #9
The Last Resort
Episode #10
Come Out Wherever You Are
Episode #11
Winner Fakes All
Episode #12
A Hedgehog's Home Is Her Castle
Episode #13
Artifact
Episode #14
Bug!
Episode #15
Sonic Tonic
Episode #16
Friend or Foe?
Episode #17
Head Games
Episode #18
When in Rome...
Episode #19
The Jewel of the Crown
Episode #20
Three Hedgehogs and a Baby
Episode #21
Dunes Day
Episode #22
Mummy Dearest
Episode #23
Hedgehog in the Iron Mask
Episode #24
Six Is a Crowd
Episode #25
Flying Fortress (Chaos Emerald Crisis, Part 1)
Episode #26
Wedding Bell Blues
Episode #27
No Hedgehog Is an Island (Chaos Emerald Crisis, Part 2)
Episode #28
Getting to Know You (Origins, Part 2)
Episode #29
New Echidna in Town (Chaos Emerald Crisis, Part 3)
Episode #30
Harmony or Something (Origins, Part 3)
Episode #31
Country Crisis
Episode #32
Haircraft in Space
Episode #33
Healer
Episode #34
Sonia's Choice
Episode #35
The Big Melt
Episode #36
Sleepers
Episode #37
Bartleby the Prisoner
Episode #38
The Art of Destruction
Episode #39
The Pendant
Episode #40
Virtual Danger
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