- For the Archie Comics character, see Sonic the Hedgehog (future version) or Sonic the Hedgehog (Light Mobius).
King Sonic looks identical to Sonic, but wears a red cape and crown.
In his reality, King Sonic was the one caught in the ROCC accident instead of Doctor Ovi Kintobor. King Sonic subsequently became a ruthless dictator who controlled an Orwellian-style Mobius with an iron fist. Little information is given about him, but he appears to command a large army of Badniks and resides in a dark castle built in his image.
His constant foes were his world's Freedom Fighters, led by Amy Rose and Tails. During their dimension hopping adventures, Sonic and Amy encountered and defeated the villain by driving him into an insane rage during battle, turning him into Super Sonic. Given the reversed nature of Sonic in this dimension, 'King Super Sonic' was not evil like the mainstream version, instead appearing as a pacifist. Upon seeing this change, Mirror Zone-Amy planned to have Tekno keep him in this form.
- In the book Sonic the Hedgehog in the Fourth Dimension, an alternate-past Sonic has the same accident and is transformed into "Cinos the Anti-Sonic", with an inverted colour scheme and a personality rather like the STC Super Sonic.