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... 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.