Fleetway Super Sonic is a transformation that appears in the Sonic the Comic Series Published by Fleetway Editions. He is a powered up form of Sonic the Hedgehog. Fleetway Super Sonic is a psychotic demon-like entity who manifests himself in Sonic's body under conditions of extreme stress or exposure to chaos energy. Sonic frequently had to battle Fleetway Super Sonics immense destructive powers, hyper-aggression, sadistic humour, and lack of restraint frequently endangered innocent civilians; and even Sonic's own friends. Indeed, Fleetway Super Sonic seems to enjoy the prospect of killing Sonic's friends; in issue #184 he deliberately holds back to prolong the pleasure of killing them. Fleetway Super Sonic was created when Sonic absorbed a dose of evil energy that had been absorbed by the chaos emeralds.

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