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

US20120017232A1 - Adaptive pattern recognition based controller apparatus and method and human-factored interface thereore - Google Patents

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

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

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

Sonic Chaos (Prototype) : Free Borrow & Streaming : Internet Archive

Sonic Chaos (Jul 13, 1993 prototype)

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

Electric Egg Zone - Sonic Retro

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

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

Sonic Chaos (Jun 30, 1993 prototype) - Longplay

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

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

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