Imgur: The magic of the Internet

Sonic Advance 3 Sprite Sheets - Game Boy Advance - Sonic Galaxy.net

Mighty in Sonic 1 Rev 1.1 with Knuckles Chaotix sprites (S1 Hack

Sprites and Hoaxes – Shauniversal Studios

Steam Workshop::Green Hill Zone - Sonic the Hedgehog

Sam Ryall Animation: Green Hill Zone. Act 1

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

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

Green Hill Re-Imagined Sprites by Exclipsy on DeviantArt

Sonic the Hedgehog Community - Fan art, videos, guides, polls and more - Game Jolt