Editing Sonic the Hedgehog 4: Episode III (lost build of cancelled

Should the next Sonic the Hedgehog game be a total reboot of the series? - Quora

Editing Sonic Boom (non-existent lost episode of animated TV series; 2014) - The Lost Media Wiki

Editing Sonic & Sega All-Stars Racing (lost prototype builds of multiplatform racing game; late-2000s) - The Lost Media Wiki

Editing Super Sonic (lost build of cancelled Sega CD port of Sega Genesis platformer Sonic the Hedgehog 2; existence unconfirmed; 1992-1993) - The Lost Media Wiki

Editing Sonic the Hedgehog (lost build of cancelled Sega CD port of Sega Genesis platformer; 1992) - The Lost Media Wiki

Editing Sonic the Hedgehog 4: Episode III (lost build of cancelled sequel to episodic platformer; mid-2010s) - The Lost Media Wiki

Editing Sonic Runners (found endless runner mobile game; 2015) - The Lost Media Wiki

Sonic the Hedgehog (IDW) (Comic Book) - TV Tropes

Editing Super Sonic (lost build of cancelled Sega CD port of Sega Genesis platformer Sonic the Hedgehog 2; existence unconfirmed; 1992-1993) - The Lost Media Wiki

Editing Sonic The Hedgehog 3 & Knuckles (lost build of cancelled iOS port of Sega Genesis platformers; 2014) - The Lost Media Wiki