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)

Prerelease:Sonic Robo Blast 2 - The Cutting Room Floor

File:SRB2 Sonic Art.png - Sonic Retro

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

Sonic Robo Blast 2

Modern Sonic V5.12 SRB2 Message Board

Sonic Robo Blast 2 PSP - GameBrew

Saturn Sonic by EddaheadNG on Newgrounds

Sonic 3D SRB2 Workshop

Sonic Robo Blast 2 - SRB2 Dash (WIP #2)