Super Neo Metal Sonic by Sawcraft1 on Newgrounds

Neo Metal Sonic Returns (Legacy Render) by Nibroc-Rock on DeviantArt

Super Neo Metal Sonic Render by Nibroc-Rock on DeviantArt

Super Neo Metal Sonic by cybervader311 on DeviantArt

Neo Metal Sonic (Sonic) Custom Action Figure

Neo Metal Sonic [Sonic R] [Mods]

Metal Sonic 3.0, Sonic Wiki Zone

i drew the pointy spooky boi <3 neo metal sonic from sonic heroes : SonicTheHedgehog

Metal Sonic (3.0 Repaint)

Neo Metal Sonic by SpikeHedgelion8 on DeviantArt

Little theory about the Sonic robots (keep in mind this is based how I view events as it's pretty clear all the Sonic robots are part of the same line of robots