ArtStation - Green Hill Background Remake

Complete - Orbinaut Framework: Green Hill Pack

Moving Green Hill Zone Background

Green Hill Zone on Behance

Pixilart - Sunset in Green Hill Zone by Kuyo

Sonic Green Hill Zone Remake by Eclyse069 on DeviantArt

Genesis / 32X / SCD - Sonic the Hedgehog (Prototype) - Green Hill Zone Act. 3 (Normal) - The Spriters Resource

8-bit Green Hill Zone Phone/Tablet Wallpaper • GamePhD

Sonic 1 HD: Green Hill Zone by Hyperchaotix on DeviantArt

Green Hill Zone by StarShiney-Chan on DeviantArt

Proto:Sonic the Hedgehog (Genesis)/Green Hill Zone - The Cutting Room Floor