Sonic The Hedgehog (1991)

Soundtrack from Sonic The Hedgehog (1991) which was released on the Sega Genesis/Mega Drive

Adventures of Sonic the Hedgehog, Vol. 1 [Collector's Edition] [2 Discs] [DVD] - Best Buy

What are the different versions of Sonic the Hedgehog (1991) and what differs between them? - Arqade

Sonic the Hedgehog (1991)

Lot Detail - 1991 SEGA Genesis (USA) Sonic the Hedgehog Sealed Video Game - WATA 9.4/A

Sonic the Hedgehog (8-bit)

Longplay of Sonic the Hedgehog (1991)

Sonic The Hedgehog (1991) by FunnyboiNG on Newgrounds

Sonic the Hedgehog (lost Winter Consumer Electronics Show 1991 demo build of Sega Genesis/Mega Drive platformer; 1991) - The Lost Media Wiki

ComicList Previews - IDW ENDLESS SUMMER - SONIC THE HEDGEHOG #1 - GoCollect

Sonic the Hedgehog - Sega Genesis - Complete – Retro Raven Games

Sonic the Hedgehog (Video Game 1991) - IMDb

Sonic The Hedgehog Crash Course Game : Target

Corona Jumper: Sonic the Hedgehog (Sega Genesis, 1991)

Sonic the Hedgehog (Genesis), The Heropedia Wiki