Sonic Pocket Adventure: Mecha Sonic Sprites by BluerSonic on DeviantArt

Metal Sonic Over Mecha Sonic [Sonic 3 A.I.R.] [Mods]

Mecha Sonic, Sprite Chronicles Wiki

Pixilart - mecha sonic sprite sheet by Tuxedoedabyss03

Pixilart - Mecha Sonic Sprite by SpongeChris

Steam Workshop::Smbz Mecha Sonic from 2006-xxxx

Never understood that Mecha Sonic from Sonic & Knuckles is a cyclops. I thought he had a chest laser crystal or something! Thanks twitter. : r/MisreadSprites

Mecha Sonic Sprite Movieclip

MechaChars SRB2 Message Board

I made the concept art of mecha sonic if it was in sonic 2 : r/SonicEXE

SMS Mecha Sonic Remake by LANDJAWS42 on DeviantArt