Sonic The Hedgehog Sprite Sheets: Game Boy Advance - Sonic Galaxy.net

Sonic Mania/Unused Graphics - The Cutting Room Floor

Complete - Orbinaut Framework: Green Hill Pack

Sprites and Hoaxes – Shauniversal Studios

ArtStation - A Enhanced Version of Green Hill Zone

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

ArtStation - Green Hill 3D Redesign

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

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

Classic Green Hill [Super Smash Bros. (Wii U)] [Mods]

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