Sonic's Timeline SRB2 Message Board

First of all I'll mention I wont count spinoffs as mainline cannon games (Sonic Rush, Mobile Sonic games, Sonic Racing games) I'll count the storybooks as the gameplay has kind of a development of an early boost (although as someone who played them I must say that those boosts were crappy)

Sonic Robo Blast 2: The Past (Video Game) - TV Tropes

Game Jolt - Share your creations

Full Interview with SonicFreak94 (SADX modder, Lantern Engine and SA2 Battle Network developer) – ARCADEX MACHINA

Sonic Robo Blast 2 - Custom Color addon

Sonic Robo Blast 2 - Speedrun

Sonic Robo Blast 2 Kart

Fans Resurrect a Long-Lost Sonic the Hedgehog Game

Sonic Robo Blast 2 Switch - GameBrew

Sonic Reclassified (Video Game) - TV Tropes

Sonic Robo Blast 2: Shut Up and Get On It - Speedrun

The best Sonic fan games

Accurate Classic Sonic in Sonic Robo Blast 2