Sonic The Hedgehog (Master System / Game Gear) Remake

Sonic the Hedgehog 3 - Master System Tilesets by PixelMarioXP on DeviantArt

Play Sega Master System Games on Your iPad and iPhone « iOS & iPhone :: Gadget Hacks

Sonic 1 SMS/GG 16-Bits Remake DEMO 0.8.9

Sonic 1 SMS Remake, Fan Games 'n' Hacks Wiki

SONIC THE HEDGEHOG (MASTER SYSTEM) - PLAY IT THROUGH 100%

Another Sonic 2 Remake (2021 version)

O BELÍSSIMO REMAKE de SONIC 1 do MASTER SYSTEM!

I think Sonic Blast for the SEGA GameGear is a better game than Sonic The Hedgehog 4: Episode 1. You can play as Knuckles! Plus beyond the first stage, the levels are

Custom / Edited - Sonic the Hedgehog Customs - Ray (Master System-Style) - The Spriters Resource

Sonic The Hedgehog (Master System / Game Gear) Remake

— SAGE 2020: Fan Games

Sonic The Hedgehog 1 Remaster & Remake