Sonic Underground Season 1 Episode 15 Sonic Tonic 1999
6.9/10 by 142 users
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.
- Released: 1999-09-17
- Runtime: 25 minutes
- Genre: Action & Adventure, Animation
- Stars: Jaleel White, Garry Chalk, Maurice LaMarche, Peter Wilds, Gail Webster
- Director: Andy Heyward
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1. Beginnings (Origins, Part 1) 1999-08-30
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2. To Catch a Queen 1999-08-31
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3. Mobodoon 1999-09-01
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4. The Price of Freedom 1999-09-02
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5. Underground Masquerade 1999-09-03
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6. Tangled Webs 1999-09-06
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7. The Deepest Fear 1999-09-07
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8. Who Do You Think You Are 1999-09-08
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9. The Last Resort 1999-09-09
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10. Come Out Wherever You Are 1999-09-10
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11. Winner Fakes All 1999-09-13
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12. A Hedgehog's Home Is Her Castle 1999-09-14
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13. Artifact 1999-09-15
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15. Sonic Tonic 1999-09-17
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16. Friend or Foe? 1999-09-20
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17. Head Games 1999-09-21
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18. When in Rome... 1999-09-22
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19. The Jewel of the Crown 1999-09-23
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20. Three Hedgehogs and a Baby 1999-09-24
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21. Dunes Day 1999-09-27
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22. Mummy Dearest 1999-09-28
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23. Hedgehog in the Iron Mask 1999-09-29
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24. Six Is a Crowd 1999-09-30
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26. Wedding Bell Blues 1999-10-04
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28. Getting to Know You (Origins, Part 2) 1999-10-06
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30. Harmony or Something (Origins, Part 3) 1999-10-08
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31. Country Crisis 1999-10-11
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32. Haircraft in Space 1999-10-12
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33. Healer 1999-10-13
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34. Sonia's Choice 1999-10-14
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35. The Big Melt 1999-10-15
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36. Sleepers 1999-10-18
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37. Bartleby the Prisoner 1999-10-19
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38. The Art of Destruction 1999-10-20
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39. The Pendant 1999-10-21
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40. Virtual Danger 1999-10-22
