Sonic and Neo Metal by Kyrogeki -- Fur Affinity [dot] net

He has the gold form in the Archie comics. It happens when he uses Chaos Emeralds I think.

Favorites Gallery for UtlimatelMetalSonicfangirl1993 -- Fur Affinity [dot] net

Metal Sonic Series by SynjoDeonecros -- Fur Affinity [dot] net

Fem Neo Metal Sonic by Caelpio -- Fur Affinity [dot] net

Neo Metal Sonic by sfmff2 -- Fur Affinity [dot] net

FanArt::Neo Metal Sonic by sitinuramjah -- Fur Affinity [dot] net

Fem Neo Metal Sonic Unleashed! by Zildtek -- Fur Affinity [dot] net

72140 - safe, artist:huper123gui, artist:theenigmamachine, collaboration, metal sonic (sonic), neo metal sonic (sonic), sonic the hedgehog (sonic), fictional species, hedgehog, mammal, robot, sega, sonic heroes, sonic the hedgehog (series), 16:9, 2017, arm

FanArt::Neo Metal Sonic by sitinuramjah -- Fur Affinity [dot] net

Fem Neo Metal Sonic Unleashed! by Zildtek -- Fur Affinity [dot] net

Fem Neo Metal Sonic by Caelpio -- Fur Affinity [dot] net

Fem Neo Metal Sonic Unleashed! by Zildtek -- Fur Affinity [dot] net

Sonic and Neo Metal by Kyrogeki -- Fur Affinity [dot] net

Neo Metal Sonic Disguise Doodles by CosmicSynthetics -- Fur Affinity [dot] net

Favorites Gallery for UtlimatelMetalSonicfangirl1993 -- Fur Affinity [dot] net

Favorites Gallery for Sexyhedgehog777 -- Fur Affinity [dot] net