Sonic The Hedgehog 3 prototype discovered and put online for all to enjoy

A piece of Sonic the Hedgehog history has made its way online after more than 25 years.

New Sonic game prototypes found by drx, shows early stages from Sonic CD, more to come

7 Sonic The Hedgehog Prototypes You Were Never Meant To Play

Sonic Fans Campaign For the Release of Sonic 3 Remastered - mxdwn Games

Sonic the Hedgehog 3 (prototype; 1993-11-03)/Hidden content - Sonic Retro

Prototype-Styled HUD Icons [Sonic 3 A.I.R.] [Mods]

Sega confirms Sonic 3 won't have its original music in Sonic Origins. Here's what will be missing, and why

News/Sonic Month Part 5 - Before Hard Times - Sonic 3 (MD) - Hidden Palace

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

Sonic 3 Prototype With Lost Content Discovered - IGN

Sega Working On Fixing A Variety Of Issues In Sonic Origins

Play Genesis Sonic the Hedgehog 3 (Nov 3, 1993 prototype) Online in your browser

Sonic 3 & Knuckles won't have its original soundtrack in Sonic Origins

Best Sonic The Hedgehog 3 Posts - Reddit

Sonic Jam - Wikipedia

Sonic the Hedgehog 3 (Nov 3, 1993 prototype) - Hidden Palace