(S2HD) is an ambitious, community-driven fan project dedicated to reimagining the 1992 SEGA classic with high-definition, hand-drawn graphics and remixed audio. While the project has faced a decade-long cycle of cancellations and reboots, it remains one of the most significant fan efforts in the Sonic community. Current Project Status Sonic the Hedgehog 2 HD Demo - Game & Watch (Fan Project) 30 Sept 2017 —

Official developers advise being wary of third-party mobile downloads, as they are not affiliated with the main project team. Official Alternative: