How to Defeat Mecha Sonic - Sega Genesis Sonic 2 Boss - Death Egg Zone - Jump Juggle Strategy

ArtStation - Mecha Sonic (Sonic 3 and Knuckles)

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Mecha Sonic (Sonic 2) by AnxiousAlex2004 on DeviantArt

Sonic 2 Character Designer Shares Interesting Tidbits About Tails, Super Sonic, Mecha Sonic and More! – Sonic City

In Sonic 2 (8-bit), Mecha Sonic was designed so that its height matched Sonic's. In Mania, it still has that very same height: 32 pixels. : r/SonicTheHedgehog

Knuckles vs Mecha Sonic MK 2 by GardePickle on DeviantArt

Mecha Sonic and Metal Sonic by MechaSonicSuperFan on DeviantArt

Mecha Sonic! - Sonic The Hedgehog Movie

Mecha Sonic (Sonic 2 GG) by MarcosVargas on DeviantArt