Metal Sonic by Giganide on Newgrounds

Sonic Mania Plus Mod - Giga Metal Sonic Kai

Giganide

Metal Sonic by CinnaZoc on Newgrounds

[Newgrounds] Impossible Metal Sonic by eliscristiane2012 on DeviantArt

Metal Sonic Kai by Snao on Newgrounds

Metal Sonic Race by Galactabee on Newgrounds

Metal Sonic Race by Galactabee on Newgrounds

Metal Newgrounds by ScepterDPinoy on DeviantArt

Fem Neo Metal Sonic by PeachyOwl on Newgrounds

Metal Sonic+Neo form+ Overlord/madness form redesign by Cyberlord1109 : r/SonicTheHedgehog

Metal Sonic by Goldmonlee on Newgrounds

Giganide

SFM) Neo Metal Sonic by MuffyWithSunglasses on DeviantArt

Metal Sonic by xDoodlz on Newgrounds

Sonic Hedgehog by IrregularSaturn on Newgrounds