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

Sonic the Hedgehog 2 - Mecha Sonic Sfx

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

Knuckles the Echidna - Wikipedia

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

mecha sonic v1, Wiki

Mecha Knuckles, Villains Wiki

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

Metal Sonic, Villains Wiki

Mecha Sonic MKI by theEyZmaster on Newgrounds

Mecha Sonic Mark II, Sonic Wiki Zone

Mecha Sonic (Sonic), Metal Sonic Wiki

Mecha Sonic, Funkipedia Mods Wiki