SRB2 Demo 4.35 Full Campaign Walkthrough - Sonic Robo Blast 2 (Demo 4.35) - Sonic World Gameplay

"Demo versions started to add actual SRB2 levels intended for the final game. They also expanded on the engine and introduced netplay, as well as other substantial game elements." 0:31 Greenflower Zone Act 1 3:28 Special Stage 1 4:42 Greenflower Zone Act 2 6:56 Special Stage 2 8:23 Greenflower Zone Act 3 9:02 Techno Hill Zone Act 1 12:35 Special Stage 3 Source - SRB2 wiki and SRB2 historic downloads section.