Head on over to and click on Download Now, once the file has downloaded successfully drag it onto your desktop or wherever and leave it sit for now. An emulator acts as the game console right on your Mac – allowing you to play your favorite games made for that specific console. In order to play our favorite childhood games we first need an emulator and that’s where Genesis Plus comes in. You won’t find a smoother well-developed seemingly flawless Genesis emulator for the Mac. If you have a passion for classic games like Sonic the Hedgehog, Mortal Kombat, Shining Force II or Gunstar Heroes then you’ll love Genesis Plus for the Mac.