Sonic Saga Series Volume 8: Hedgehog Havoc! was the intended eight trade-paperback in the Sonic Saga Series volume series. It contains detailing the second half of the "Bold New Moebius" saga. The volume was intended to release but was later removed from listings entirely after numerous delays, presumed cancelled.
- The hit SONIC SAGA graphic novel series returns! This volume collects Sonic’s struggle against the villainous dopplegangers from the twisted mirror world of Moebius! The Suppression Squad already conquered their world, and now they’re out to conquer Sonic’s! Leading them is Sonic’s evil double, Scourge! How can our heroes overcome—literally—themselves? It’s an uphill battle as the forces of darkness throw their lot in with the Eggman Empire. Dr. Eggman adds insult to injury when he creates a Metal Scourge to join Metal Sonic! And when Sonic and Amy take the fight to Moebius, everything goes wrong! All this plus bonus stories tying into the SEGA games! Collects select stories from Sonic the Hedgehog #s 190 – 193.
- The front cover artwork for this volume is the same as that on the front cover of Sonic the Hedgehog #195, though with a couple of edits: