Sonic 1, 2 & 3 Prototype Comparison (First Zone)

Comparing Prototypes from Sonic the Hedgehog 1, 2 & 3.#SonicGames #Prototypes #Comparison

Rare Sonic the Hedgehog 3 prototype found, features cut zones, alternate music, different art, cut gameplay mechanics, and more : r/Games

Sonic the Hedgehog (prototype), Sonic Wiki Zone

Sonic the Hedgehog (16-bit) (prototype)/Comparisons/Sparkling Zone - Sonic Retro

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

Sonic 1, 2 & 3 Prototype Comparison (First Zone)

Early Sonic 3 prototype found, features major differences to the final game

Sonic the Hedgehog 3 (prototype; 1993-11-03)/Comparisons/Angel Island Zone - Sonic Retro

Sonic Mania vs Sonic 1, 2, 3, CD, & Knuckles ALL COMPARISONS

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

Sonic the Hedgehog 3 (prototype; 1993-11-03)/Comparisons/Launch Base Zone - Sonic Retro

Sonic 1, 2 & 3 Prototype Comparison (First Zone)

Sega Rolling Out New Update For Sonic Origins, Here's What's Included

Sonic the Hedgehog 2, Versions Comparison