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

Metal Sonic (Another Time-Another Place), Metal Sonic Wiki

Hyper Metal Sonic, Sonic Wiki Zone

Super Mario Bros. Z / Characters - TV Tropes

Mecha Sonic (Sonic the Hedgehog 2) (8-bit), Sonic Wiki Zone

Mecha Sonic Mk. II, Villains Wiki

Metal Sonic (Classic), Villains Wiki, Fandom

Mecha Sonic, Funkipedia Mods Wiki

Mecha Sonic Mk. II VS Battles+BreezeWiki

Notable Fan Works/Silver Sonic Mech, Metal Sonic Wiki

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

Metal Sonic, Villains Wiki

Metal Sonic vs Silver Sonic 2