Pixilart - A detailed Sonic 1 sprite by Diam0nddude

Ranking the Classic Sonic Games - The Chozo Project

Sonic 1 sprite HD : r/SonicTheHedgehog

Sonic 1 Sprite Model [Sonic Adventure DX] [Works In Progress]

Sonic 1 & Knuckles - SEGA Online Emulator

How to port Sonic 1 and 2 mobile on PC the right way! - Decompilation

Sonic 1 - CC & WCES Remakes

About Team Forever

Sonic the Hedgehog Forever - SteamGridDB

Big In Sonic 1 Sonic and Sega Retro Forums

Sonic the Hedgehog (Mobile Decompilation) - PCGamingWiki PCGW - bugs, fixes, crashes, mods, guides and improvements for every PC game