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

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

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

Tom and Jerry: The Movie

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

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

Sonic Chaos/Development - Sonic Retro

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

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

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