ArtStation - Mecha Sonic

ArtStation - Metal Overlord, Sonic Heroes (2003)

ArtStation - Sonic Mania Plus: Mecha Metal Sonic Boss

ArtStation - Turbo Mecha Sonic - Damaged

ArtStation - Mecha sonic V2

ArtStation - Vs. Metal Sonic

ArtStation - Turbo Mecha Sonic - Damaged

ArtStation - Turbo Mecha Sonic - Damaged

Fanart] Mecha Sonic on Behance

ArtStation - Metal Sonic

ArtStation - [FANART] Movie Metal Sonic

KREA - digital drawing of metal sonic the hedgehog made out of radioactive material, in the desert, blue highlight, mecha, highly realistic, hyperrealistic, hyperdetailed, anime, artstation, perfect cut, pyramid shape, from sonic

ArtStation - 3d Metal Sonic