Sonic the Hedgehog (2006 game)/Development - Sonic Retro

Screw This Game - Sonic Origins Modder Halts Development On Massive Patch

Prerelease:Sonic the Hedgehog (2006) - The Cutting Room Floor

Sonic the Hedgehog 2 (Video Game) - TV Tropes

Sonic P-06 - PCGamingWiki PCGW - bugs, fixes, crashes, mods, guides and improvements for every PC game

Sonic the Hedgehog CD (Video Game) - TV Tropes

Sonic the Hedgehog (2006 game)/Development - Sonic Retro

Next major Sonic the Hedgehog game in development, what direction do you want the franchise to take? » SEGAbits - #1 Source for SEGA News

Prerelease:Sonic the Hedgehog (2006) - The Cutting Room Floor

DF Retro: Sonic CD - under-appreciated but still brilliant today