Sonic Chaos (Master System prototype; 1993-07-13)/Hidden content - Sonic Retro

Sonic Chaos (May 17, 1993 prototype) - Hidden Palace

Sonic Chaos

Sleeping Egg Zone - Sonic Retro

Sonic Chaos (May 17, 1993 prototype) - Hidden Palace

Sonic Chaos (May 17, 1993 prototype) - Hidden Palace

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

Custom / Edited - Sonic the Hedgehog Customs - Sonic (Sonic Chaos May 17, 1993 Prototype, Expanded) - The Spriters Resource

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

Sonic Chaos Prototype (July 13, 1993) - Boss Theme BETA

Sonic Chaos/Hidden content - Sonic Retro

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

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

Sonic Retro:Anniversaries/July - Sonic Retro

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

Sonic Chaos (Master System prototype; 1993-07-13)/Comparisons - Sonic Retro