Green Hill Zone – Duth Olec's Cuckoo Cosmos

Enhanced Green Hill Zone [Sonic Mania] [Works In Progress]

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

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

Sonic in Green Hill Zone [Sprite Animation/2K Special]

The VG Resource - Dolphman's sprite library of customs & edits

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

Sonic Mania Sprites Sonic Amino PT~BR© Amino

S2Beta:Prototype Zones/Neo Green Hill - Sonic Retro

Sonic 1 Green Hill Canvas Wrap

Sonic Platformer Game