Mecha Sonic Mk. 3 by burgerterror on DeviantArt

Mecha Sonic (Sonic 3 and Knuckles) by MechaSonicSuperFan on DeviantArt

Complete?] Mecha Sonic MK.II-F, Now with 2 × the Strength & Stamina! : r/SonicTheHedgehog

Mecha Sonic - Sonic Retro

Mecha Sonic MKIII by StreakThunderstorm on DeviantArt

Silver Sonic Mk 3 rebuilt by Angel85 -- Fur Affinity [dot] net

Mecha Sonic [Sonic Adventure DX] [Mods]

Silver Sonic MKIII, Wiki

Sonic Mania - Special Stages, Bonus Stages, & Time Attack Shown

Mecha Sonic concept by Sweecrue on DeviantArt

Silver Ballem in Sonic Cd - Comic Studio