The Definitive Development History of The Hedgehog Engine
17:54
The Definitive Development History of Sonic 2 HD
22:35
The Definitive Development of Sonic & Sega All-Stars Racing
22:07
How Does the Hedgehog Engine Work?
11:13
Sonic's Speed is Fundamentally Flawed
16:27
When Sonic Games Play Themselves | Automation Analysis
23:18
The Definitive Development History of Sonic Fan Remix
34:07
Why Are Controller Buttons Like That?
19:33