Adventures of Sonic 1, Sonic the Hedgehog Hacks Wiki

Adventures of Sonic 1 is a Sonic 1 (16-bit) hack which re-themes the existing Sonic, and Dr. Eggman sprites with the fan-made "Adventures of Sonic the Hedgehog" versions based on the ones from the DIC Entertainment TV series of the same name. Dr. Eggman has been replaced by the Adventures version of Dr. Robotnik. Accessing this bonus stage requires 20 rings, and once you touch a starpost check point, stars will swirl on top of the post, jumping into the swirling stars will take you to the bonus

Sonic Adventure DX (2011) - PCGamingWiki PCGW - bugs, fixes, crashes, mods, guides and improvements for every PC game

Sonic the Hedgehog Will Get His Own Cinematic Universe

Augusto The Hedgehog (Design 2.0), Wiki

Rumour: Sonic Team Is Working On A Brand New 2D Sonic Game

Adventures of Sonic 1, Sonic the Hedgehog Hacks Wiki

Sonic 2' Poster Debuts Online Ahead of First Trailer

Sonic the Hedgehog 2 Post Credits Scene and Ending Explained - IGN

Proto:Sonic the Hedgehog 3 - The Cutting Room Floor

List of rumors - SmashWiki, the Super Smash Bros. wiki

All the 'Sonic the Hedgehog 2' Hidden Easter Eggs

Sonic Superstars (2023), PS4 Game

Sonic the Hedgehog Hacks Wiki