Knuckles vs Mecha Sonic MK 2 by GardePickle on DeviantArt

ArtStation - Mecha Sonic (Sonic 3 and Knuckles)

Custom / Edited - Sonic the Hedgehog Customs - Mecha Sonic Mk II (Expanded) - The Spriters Resource

Mecha Sonic in Sonic the Hedgehog - Sonic Retro

IDW's Mecha Sonic MK2 - S&K Style! : r/SonicTheHedgehog

Super Mecha Sonic Vs Silver Sonic And Silver Tails

Mecha Sonic and Metal Sonic by MechaSonicSuperFan on DeviantArt

Sonic The Hedgeblog on X: The Mecha Sonic Artwork And The In-Game Sprite 'Sonic 2' Game Gear / X

Mecha Sonic (Sonic 2 GG) by MarcosVargas on DeviantArt

Knuckles vs Mecha Sonic by thewax70 on Newgrounds

Mecha Sonic. in 2023 Sonic and shadow, Sonic art, Sonic