Mecha Sonic and Master Emerald - 3D model by HaughtyGrayAlien

the ultimate chaos emeralds and the combined master emerald that shadow and sonic has - - 3D Warehouse

Mecha Sonic, Fictional Fighters Wiki

ArtStation - Sonic Prop Project #3: Chaos Emeralds/Master Emeralds

HaughtyGrayAlien - Sketchfab

Mecha Sonic by EmeraldPyro on DeviantArt

ArtStation - Mecha Sonic (Sonic 3 and Knuckles)

OC) (BLENDER 2.91) Sonic 3 & Knuckles Mecha Sonic Model (WIP, Currently needs texturing done) : r/SonicTheHedgehog

Mecha Sonic 3D model 3D printable

HaughtyGrayAlien - Sketchfab

master emerald 3D Models to Print - yeggi

mecha sonic 3D Models to Print - yeggi

Mecha Sonic 3D model 3D printable

master emerald 3D Models to Print - yeggi

ArtStation - Mecha sonic V2