Zone: 0 > Sonic 3 > Background Information

Green hill zone over aiz in sonic 3 air [Sonic 3 A.I.R.] [Mods]

Sonic the Hedgehog 3 (prototype; 1993-11-03)/Comparisons/Hydrocity Zone - Sonic Retro

𝚂𝙾𝙽𝙸𝙲 - 𝚃𝙷𝙴 𝙽𝙸𝙶𝙷𝚃𝙼𝙰𝚁𝙴 𝚆𝙾𝚁𝙻𝙳 on X: I wonder where this door leads? / X

Classic green hill zone level and the icon loop sonic runs across/through.

Steam Workshop::Sonic 3 and Sally

Sonic the Hedgehog 3 (prototype; 1993-11-03)/Comparisons/Lava Reef Zone - Sonic Retro

Sonic Frontiers review: maybe it's time to slow down

100% ACCURATE Marble Garden Zone Act 1

HydroCity Zone Is the Most Hateable Zone in Sonic 3 – Retrovolve

Sonic 3: Angel Island Revisited

Zone: 0 > Sonic 3 > Background Information