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.

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

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

Sonic Prototypes (released by Hidden Palace)

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

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