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Sonic Underground is an animated television series that follows the adventures of Sonic the Hedgehog and his siblings, pink... More

Sonic Underground is an animated television series that follows the adventures of Sonic the Hedgehog and his siblings, pink hedgehog Sonia and green-hued Manic. Sonic Underground bears little relation to the often complex Sonic universe (including previous animated series, as well as Sonic comics and games), and shared few established characters.