Sonic Chaos (Jun 30, 1993 prototype) - Hidden Palace

A prototype of Sonic Chaos (also known as Sonic & Tails in Japan) for the Sega Master System.

Sonic Chaos (Master System prototype; 1993-06-30) - Sonic Retro

Sonic Chaos (May 17, 1993 prototype)

Sonic the Hedgehog/History and appearances (1991 - 2006)

Resumo e Imagens das novas prototypes dos jogos do Sonic

Sonic Chaos (Jun 30, 1993 prototype) - Hidden Palace

Sonic Chaos (Jun 30, 1993 prototype) - Hidden Palace

Sonic Chaos (Jun 30, 1993 prototype) - Hidden Palace

Hidden Palace Zone (Sonic the Hedgehog 2), Sonic Wiki Zone

Sonic Origins/Sonic 3 & Knuckles - The Cutting Room Floor