Game Gear/Master System Sonic: Playable Metal sprites. : r/SonicSpriteArt

Sonic The Hedgeblog — The Mecha Sonic Artwork And The In-Game Sprite

Sonic Game Gear Fusion Sprite? by ER1ZO181 on DeviantArt

Game Gear - Sonic the Hedgehog - The Spriters Resource

Sonic The Hedgehog Sprite Sheets - Sega Master System - Sonic Galaxy.net

Sonic The Hedgehog 2 Sprite Sheets - Sega Master System - Sonic Galaxy.net

Master System - Sonic the Hedgehog 2 - Sonic the Hedgehog - The Spriters Resource

NFG Games Presents - A Sonic the Hedgehog Sprite History

Sonic The Hedgehog Sprite Sheets - Sega Master System - Sonic Galaxy.net

r/SonicSpriteArt

Master System - Sonic the Hedgehog - The Spriters Resource

Master System - Sonic the Hedgehog - Objects - The Spriters Resource

SilverSonic-Sonic 2 Master System Mod.Gen by KeatonThFox on DeviantArt

Game Gear - Sonic the Hedgehog - The Spriters Resource

SonicSpriteArt

Neo Metal Sonic Spritesheet by CjThHegehog on DeviantArt