Sonic Underground 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.
1 - 40Virtual DangerOct. 22, 1999- 1 - 39The PendantOct. 21, 1999
- 1 - 38The Art of DestructionOct. 20, 1999
- 1 - 37Bartleby the PrisonerOct. 19, 1999
- 1 - 36SleepersOct. 18, 1999
- 1 - 35The Big MeltOct. 15, 1999
- 1 - 34Sonia's ChoiceOct. 14, 1999
- 1 - 33HealerOct. 13, 1999
- 1 - 32Haircraft in SpaceOct. 12, 1999
- 1 - 31Country CrisisOct. 11, 1999
- 1 - 30Harmony or Something (Origins, Part 3)Oct. 08, 1999
- 1 - 29New Echidna in Town (Chaos Emerald Crisis, Part 3)Oct. 07, 1999
- 1 - 28Getting to Know You (Origins, Part 2)Oct. 06, 1999
- 1 - 27
- 1 - 26Wedding Bell BluesOct. 04, 1999
- 1 - 25Flying Fortress (Chaos Emerald Crisis, Part 1)Oct. 01, 1999
- 1 - 24Six Is a CrowdSep. 30, 1999
- 1 - 23Hedgehog in the Iron MaskSep. 29, 1999
- 1 - 22Mummy DearestSep. 28, 1999
- 1 - 21Dunes DaySep. 27, 1999
- 1 - 20Three Hedgehogs and a BabySep. 24, 1999
- 1 - 19The Jewel of the CrownSep. 23, 1999
- 1 - 18When in Rome...Sep. 22, 1999
- 1 - 17Head GamesSep. 21, 1999
- 1 - 16Friend or Foe?Sep. 20, 1999
- 1 - 15Sonic TonicSep. 17, 1999
- 1 - 14Bug!Sep. 16, 1999
- 1 - 13ArtifactSep. 15, 1999
- 1 - 12A Hedgehog's Home Is Her CastleSep. 14, 1999
- 1 - 11Winner Fakes AllSep. 13, 1999
- 1 - 10Come Out Wherever You AreSep. 10, 1999
- 1 - 9The Last ResortSep. 09, 1999
- 1 - 8Who Do You Think You AreSep. 08, 1999
- 1 - 7The Deepest FearSep. 07, 1999
- 1 - 6Tangled WebsSep. 06, 1999
- 1 - 5Underground MasqueradeSep. 03, 1999
- 1 - 4The Price of FreedomSep. 02, 1999
- 1 - 3MobodoonSep. 01, 1999
- 1 - 2To Catch a QueenAug. 31, 1999
- 1 - 1Beginnings (Origins, Part 1)Aug. 30, 1999
