Brawl Vault

Sonic Mania/Unused Graphics - The Cutting Room Floor

Steam Workshop::Green Hill Zone

Sonic 1 HD: Green Hill Zone by Hyperchaotix on DeviantArt

Steam Workshop::Sonic 1 - Green Hill Zone

I made Green Hill Zone in note blocks for my friend's Minecraft recreation of Sonic The Hedgehog (1991) : r/SonicTheHedgehog

The Textures Resource - Full Texture View - Sonic Adventure 2 - Green Hill Zone

Happy Green Hill Zone by IrisOfTheRepliforce on Newgrounds

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

Green Hill Zone Sprites Remastered by SuperMarioFan1lq on DeviantArt

Sonic Platformer Game