Mecha Sonic MKI and MKII, Metal Sonic Wiki

Mecha Sonic was to have a number of models appearing in Sonic X-Treme, which were never finalized. These two models were refered to as Mark I and Mark II

Mecha Sonic (Sonic the Hedgehog 2), Sonic Wiki Zone

Mecha Sonic MKIII by Ishida1694 on DeviantArt

Hyper Metal Sonic, Sonic Wiki Zone

Mecha Sonic Mk. I, Villains Wiki

Which version of sonic robot is your favorite? (Metal Sonic

Mecha Sonic (Sonic 2), The Codex Wiki

Super Mecha Sonic Mark II, Sonic Wiki Zone

Sonic Journeys Sonic, Classic sonic, Sonic the hedgehog

Silver Sonic (Character) - Comic Vine