Hyper Metal Sonic Sprites by masterflashx on DeviantArt

Custom / Edited - Sonic the Hedgehog Customs - Neo Metal Sonic (Sonic Advance-Style) - The Spriters Resource

Custom / Edited - Sonic the Hedgehog Customs - Metal Sonic (Sonic 3-Style) - The Spriters Resource

Metal Sonic Sprite Sheet Extended Edtion by UltraEpicLeader100 on DeviantArt

Knuckles' Chaotix Metal Sonic sprites but with his Kai form palette. : r/SonicTheHedgehog

Metal Sonic sprites 1 by LinkdaHedgie on DeviantArt

Pixilart - metal sonic full sprite by blue-blue

The VG Resource - RatherNoiceSprites' Custom/Edited Sprites

✪ Neo Metal Sonic Mod Boss

Pack de sprites de Metal Sonic para Facu el erizo

The guy who does that pixel thing Sonic heroes, Pixel art, Sonic mania