Sonic 3 Prototype With Lost Content Discovered - SEGA Online Emulator

SEGA Megadrive / SEGA Genesis Emulator allows you to play SNES emulated games online in your browser.

Sonic Superstars: Everything You Need to Know About the New Sonic

Sonic CD - Wikipedia

Really dumb question, do I own a prototype Sonic 3? : r/SEGA

Sonic Classic Era : r/IcebergCharts

Another Nintendo leak uploaded online, features betas and source

Sonic 3 Prototype With Lost Content Discovered - IGN

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

Sonic 3 Prototype With Lost Content Discovered - IGN

Proto:Sonic the Hedgehog 3 - The Cutting Room Floor

Sonic the Hedgehog 2 (Simon Wai prototype), Sonic Wiki Zone

7 Sonic The Hedgehog Prototypes You Were Never Meant To Play

Sonic the Hedgehog 3 - Wikipedia