Metal Sonic (Sonic the Hedgehog) - IDW Publishing

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

Sonic the Hedgehog: Knuckles' Greatest Hits – IDW Publishing

Sonic the Hedgehog: Halloween Special #1 - Comic Book Preview

IDW Publishing - What do you think happens next?? 📚: Sonic The Hedgehog: Imposter Syndrome #4 W: Ian Flynn A: Thomas Rothlisberger

Super Comics: Sonic the Hedgehog (IDW) – #18 – The Reviewers Unite

IDW Sonic Covers & Previews · IDWSonicNews — Preview Pages for Sonic the Hedgehog (IDW)

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

Super Comics: Sonic the Hedgehog (IDW) – #10 – The Reviewers Unite

Sonic The Hedgehog IDW (#1-67) - Read Comic Online Sonic The Hedgehog #61

SONIC THE HEDGEHOG #25 NEWSSTAND Variant 1ST METAL SONIC Archie Comics VHTF

Sonic The Hedgehog IDW (#1-67) - Read Comic Online Sonic the Hedgehog #57

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

Super Comics: Sonic the Hedgehog (IDW) – #10 – The Reviewers Unite

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