ArtStation - Mecha Sonic (Sonic 3 and Knuckles)

ArtStation - Sonic Overhaul

Mecha Sonic (Sonic 3-style) by CancerEdition on DeviantArt

Sonic 3K 3-D Models: Knuckles and Mecha Sonic by The-CSA on DeviantArt

ArtStation - Mecha Sonic

ArtStation - Shadow the Hedgehog V. 2.0 - Sonic The Movie +SpeedEdit

ArtStation - Sonic 3 A.I.R. Modern Edition

ArtStation - Sonic & CO

ArtStation - Metal Sonic

ArtStation - Knuckles (Screensaver Style)

SONIC THE HEDGEHOG 3 (2024) - Project Shadow Emerges

ArtStation - Mecha Sonic Model (Rendered in Substance Painter and Unity. Also including Wireframe in 3DS Max)

Mecha Sonic vs Knuckles by Nerkin on deviantART

ArtStation - Sonic the Hedgehog 3 - Angel Island Zone Diorama and Badniks

ArtStation - Sonic Concept Art

ArtStation - Mecha Sonic