S1MD Green Hill Zone tilesets in S1MDMS style by HidroGeniuns on DeviantArt

Sonic Mania - The Cutting Room Floor

Sonic The Hedgehog Sprite Sheets - Sega Genesis - Sonic Galaxy.net

Sega Genesis / 32X - Sonic the Hedgehog - Green Hill Zone & Ending - The Spriters Resource

Sonic 1 green hill zone sprites

Green Hills Zone Sprites by Alex13Art on DeviantArt

MlKE on X: My own Green Hill Zone Mock up (I know its overdone shhh) #pixelart #sonic #fanart #art #aseprite #gamedev This took a surprising amount of hours. / X

Neo Green Hill In Sonic Mania [Sonic Mania] [Works In Progress]

Sonic The Hedgeblog — In early 'Sonic 1′ screenshots the Green Hill Zone

Modding Sprites in Sonic Mania Problem

CodenameGamma🏳️‍⚧️ on X: The Sonic Mania Sprites in S3k. all it took was some code moving sadly the S2 sprites caused crashing. gonna try the S1 sprites for sonic next. #SonicOrgins /