metal sonic and mecha sonic (sonic and 2 more) drawn by 9474s0ul

Sonic Vs Mecha Sonic by Deamondante -- Fur Affinity [dot] net

Mecha Sonic Mk. I, Villains Wiki

Mecha Sonic Revamp [BETA]

Custom / Edited - Sonic the Hedgehog Customs - Mecha Sonic Mk II (Expanded) - The Spriters Resource

Mecha Sonic MK. 1 (Sonic 2) - 3D model by Spex130 (@spex130) [1431dad]

Mecha Sonic Sprite Sheet by TheKnucklesMainG4 on DeviantArt

Custom / Edited - Sonic the Hedgehog Customs - Mecha Sonic Mk II (Advance-Style) - The Spriters Resource

Mecha Sonic (Sonic 2), The Codex Wiki

sonic the hedgehog and mecha sonic (sonic and 2 more) drawn by banel_springer

So, what's the deal with Mecha Sonic in terms of the Classic-Modern split? : r/SonicTheHedgehog