Metal Sonic (Sonic the Hedgehog) - IDW Publishing

Metal Sonic is a robot created by Ivo Robotnik as a rival for Sonic the Hedgehog. 

ComicList Previews - SONIC THE HEDGEHOG VOLUME 14: OVERPOWERED TP - GoCollect

Metal Sonic, IDW Sonic Hub

Sonic The Hedgehog IDW (#1-67) - Read Comic Online Sonic The Hedgehog #59

Metal Sonic, Wiki

i'm ready to bloom — Sonic's Next Emotional Arc: Skepticism and Doubt

Sonic The Hedgehog IDW (#1-67) - Read Comic Online Sonic The Hedgehog #64

Sonic the Hedgehog (series 2) #19 (Retailer Incentive Cover - Nathalie Fourdraine) 1:10, IDW Publishing Back Issues

Comics Sonic the Hedgehog (IDW) 4k Ultra HD Wallpaper by Reckoman

Hot Take: Metal Sonic (at least regular form) should never ever talk because stuff like this hits way harder than if he just spoke instead : r/SonicTheHedgehog

Super Neo Metal Sonic, Sonic Wiki Zone

Metal Sonic - Sonic Retro

Sonic the Hedgehog: Bad Guys #1: 2020 NYCC Exclusive – IDW Publishing

Let's appreciate the fact Neo Metal Sonic exists in 3 different media : r/SonicTheHedgehog

IDW Publishing

Sonic The Hedgehog, Vol. 14: Overpowered: 9781684059850: Stanley, Evan: Books