SEGA's Crazy Trick to Create Sonic 2's Special Stage - CODING SECRETS
8:43
Secrets of Sonic 3D's "Impossible" scrolling
6:28
Hidden Secrets of Sonic 3's Special Stage Revealed
1:22:28
ALL Sonic the Hedgehog 1 + 2 Unused Content | LOST BITS [TetraBitGaming]
6:59
The Coding Secrets hidden in "Sonic the Hedgehog"
8:03
SEGA's Crazy S&K "Lock-On Technology"
23:10
The Story of TurboGrafx-16 -- The NEGLECTED Console That Beat Nintendo
17:21
The Making of Sonic CD
8:36