The game is Sonic Sms Remake.Fantastic remake the sonic Master Sytem/Game Gear. : r/SonicTheHedgehog

Sonic Fan Game - Sonic 2 SMS Remake FULL PLAYTHROUGH (SAGE 2020)

Why does SEGA keep forgetting that the Master System ever existed? : r/ SonicTheHedgehog

SAGE 2023 - Complete - Sonic SMS Remake (60 FPS + 2P)

What version of Sonic the Hedgehog (1991) do you think is the best? The Genesis/Mega Drive version, the Master System/Sega Mark III version, the Game Gear version, or the Tiger Electronics version?

Sonic The Hedgehog 2 HD Project (Fan Game) - Is it any good?

game gear « SEGADriven

A full, fan made 16-bit reimagining of Sonic Triple Trouble just released today, and it's pretty great, Page 3

View topic - [FINISHED] Sonic the Hedgehog Game Gear - SMS Style Edition - Forums - SMS Power!

Sonic 2 Genesis port remade on the Master System!! #sonicthehedgehog #romhack #sega

Sonic Mania Collector's Edition Review