List of Sonic the Hedgehog video games - Wikipedia

Sonic Boom: Fire & Ice - Wikipedia

Sonic Colors - Wikipedia

SegaSonic the Hedgehog - Wikipedia

Sonic the Hedgehog 3 - Wikipedia

Sonic Rush Adventure, Awesome Games Wiki

Sonic Adventure DX (Steam) - PCGamingWiki PCGW - bugs, fixes, crashes, mods, guides and improvements for every PC game

Sonic Colors: Ultimate, Sonic Wiki Zone

Sonic the Hedgehog - SmashWiki, the Super Smash Bros. wiki

Sonic the Hedgehog (lost build of cancelled Sega CD port of Sega Genesis platformer; 1992) - The Lost Media Wiki

Sonic the Hedgehog (OVA) - Wikipedia

Sonic CD - Wikipedia

Shadow the Hedgehog (Sonic Prime), Heroes Wiki