Mecha Sonic from Sonic 2 MD by MauroFonseca on DeviantArt

Play Mecha Sonic 2 for free without downloads

Mecha Sonic Mk. II, Villains Wiki

Mecha Sonic Revamp [BETA]

Mecha Sonic II by RavenBlitz -- Fur Affinity [dot] net

Mecha sonic is a Construct!?, Wiki

Mecha Sonic Mk.II by Katlike-Moai on Newgrounds

Mecha Sonic In Sonic 2

sonic the hedgehog and mecha sonic (sonic and 2 more) drawn by banel_springer

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

Unseen Sonic the Hedgehog 2 Art by Yasushi Yamaguchi Comes To Light - Sonic Retro