Sonic 3 & Knuckles Hard Bosses Edition 2 is an online retro game which you can play for free here at www.retrogamesonline.co It has the tags: arcade, action, classic, sonic, and was added on Feb 01, 2015. It has been played 501 times and is available for the following systems: sega / md / Sega Genesis You can also play Sonic 3 & Knuckles Hard Bosses Edition 2 unblocked.