A fan created an enhanced version of Sonic the Hedgehog 2 for the SEGA Master System

While Sonic the Hedgehog 2 on the Master System is considered a favorite by many, it never hurts to give the game a new coat of paint. An enhanced version of Sonic the Hedgehog 2 was created by user MrCat, which includes three new zones, remastered layouts, and artwork. 

You can try out the game yourself by clicking here. 

Via Indie Retro News