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

Sprites and Hoaxes – Shauniversal Studios

The Spriters Resource - Full Sheet View - Sonic the Hedgehog Genesis - Green Hill Zone

Green Hill Zone, Map of the Sonic the Hedgehog video game universe Wiki

Steam Workshop::Sonic 1 - Green Hill Zone

ArtStation - A Enhanced Version of Green Hill Zone

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

User blog:SalaComMander/SalaComMander's first sprite comic, Sonic Wiki Zone

Sonic the Hedgehog Community - Fan art, videos, guides, polls and more - Game Jolt

MerrydriveMarcy on X: Replaced the background and frontground with Emerald Hill sprites! (Because the first week is against Sonic from Sonic 2) #Sonic #SonicTheHedgehog #SonicMania #Sonic1 #Sonic2 #SonicTheHedgehog2 #SonicTheHedgehog1 #FNF

Green Hill Zone Sprites Remastered by SuperMarioFan1lq on DeviantArt