Sonic The Hedgehog (2006) by SonicPark1999Games - Game Jolt

Sonic the Hedgehog(2006)(Review)

Sonic 06 level background on sonic 3 air by Angry Sun Gaming

Sonic The Hedgehog (2006 video game)

Sonic 06 level background on sonic 3 air by Angry Sun Gaming

Sonic 2006 2D Android by VasiaDvo_Piwik - Game Jolt

Best Fan Games - Game Jolt

Sonic.exe Version 7 Android by ZanniLockWan - Game Jolt

Sonic the Hedgehog (2006), The Super Gaming Brothers Wiki

Pre-E3 2006: Sonic The Hedgehog - IGN

Sonic The Hedgehog (2006) by SonicPark1999Games - Game Jolt

Sonic the Hedgehog [2006] [Walkthroughs] - IGN