All this talk about Sonic Mania 2, Sonic Adventure 3 etc makes me

A brief history of Sonic The Hedgehog on PC

Which one of these would you consider Sonic Adventure 3 : r/SonicTheHedgehog

Sonic Lost World - Nintendo Wii U : Sega of America Inc: Video Games

So which is the real Sonic Adventure 3 : r/SonicTheHedgehog

SEGA Sonic Mania Pin Buttons Incl. Sonic the Hedgehog Tails

Sonic Adventure, Sonic Wiki Zone

Sonic Origins launches June 23 for PS5, Xbox Series, PS4, Xbox One, Switch, and PC - Gematsu

Sonic Mania Collector's Edition (PS4) - Tokyo Otaku Mode (TOM)

Sonic the Hedgehog (16-bit)