List of Sonic Underground episodes

The following are episode summaries for the Sonic Underground television series. The show ran for 40 episodes in first-run syndication in 1999. Each episode featured a musical segment song by Sonic, Manic and Sonia. While it was believed for a while that 65 episodes were made of which only 40 aired (since there were supposedly 65 planned), Ben Hurst, a main writer from Sonic the Hedgehog, who was also involved in Sonic Underground's production, stated in a chat at the Sonic Amateur Games Expo 2008 that only 40 were produced.