Sonic The Hedgeblog — Past Green Hill 'Tails & The Music Maker' SEGA

Sonic Prime Flashback's sprites in Advance Style 👍 (Artist: @Kanimy_0) : r/SonicTheHedgehog

Sprites and Hoaxes – Shauniversal Studios

Steam Workshop::Green Hill Zone - Sonic the Hedgehog

Custom / Edited - Sonic the Hedgehog Customs - Green Hill Zone Background (Modern, Genesis-Style) - The Spriters Resource

ArtStation - Sonic the Hedgehog Diorama Series: Green Hill Zone

Sonic 1 HD: Green Hill Zone by Hyperchaotix on DeviantArt

Sonic the Hedgehog - Green Hill Zone by SonicDash57 on DeviantArt

Custom Green Hill Sprites 2.0! by FuzzysArting on DeviantArt

Happy Green Hill Zone by IrisOfTheRepliforce on Newgrounds

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