New Sonic the Hedgehog (1991) prototype uncovered by preservation

A prototype of Sonic the Hedgehog (1991) was showcased by a video game preservation group in a New Year's Eve livestream.

Proto:Sonic the Hedgehog (Genesis) - The Cutting Room Floor

Long Lost Sonic The Hedgehog Prototype Finally Released

Sonic 1 Archives - Tails' Channel

Finally - A Prototype For The Original Sonic the Hedgehog Has Been

21 Crazy Facts About Sonic and the Console War He Started - IGN

Sonic the Hedgehog (Return of Underground)

Sonic 2 'lost stages' discovered via old design docs and a VHS

Ancient Hedgehog Discovered - PressReader

Sonic the Hedgehog (lost Tokyo Toy Show prototype build of Sega

Invincible (Aug 21, 1992 prototype) - Sonic the Hedgehog 2

Pétition · Release Sonic Boom on multiple platforms ! ·

Sonic Prototype Game for the Sega Mega Drive Discovered