Mecha Sonic and Master Emerald - 3D model by HaughtyGrayAlien

16bit 3D models - Sketchfab

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

mecha sonic 3D Models to Print - yeggi

Runnic the hybrid 3D Model Angles by Runhurd -- Fur Affinity [dot] net

Master Emerald - 3D model by swordmanck (@Swordmanck) [91b286c]

ArtStation - Mecha Sonic (Sonic 3 and Knuckles)

master emerald 3D Models to Print - yeggi

Mecha Sonic 3D Model - .Blend - 123Free3DModels

ArtStation - Mecha Sonic (Sonic 3 and Knuckles)

Mecha Sonic by TheClassyPlushtrap on DeviantArt