Sonic The Hedgeblog — In early 'Sonic 1′ screenshots the Green Hill Zone

In early ‘Sonic 1′ screenshots the Green Hill Zone flowers were purple. In the @HiddenPalaceOrg prototype you can see it for yourself.

Sonic Generations – Source Gaming

Sonic Generations – First Screenshots And Trailer Revealed!

then. The

Sonic the Hedgehog - Green Hill Zone #1

Green Hill Zone (Sonic the Hedgehog), Sonic Wiki Zone

New posts in General - Sonic the Hedgehog Community on Game Jolt

Sonic Retro - Second only to Sega

Zone: 0 > Sonic 1 > Green Hill Zone

S1 LE - Green Hill Zone Act 1 (Old Screenshot) by MarioYT21 on DeviantArt

LEGO IDEAS - Blog - 10K Club Interview: Viv Grannell's Sonic Mania Green Hill Zone! (Best enjoyed with a Chili Dog)

Sonic Retro - Second only to Sega

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

Sonic 1 TTS - Night Hill zone Screenshot by TestAccountbyme on DeviantArt

Zone: 0 > Sonic 1 > Green Hill Zone