Collecting seven for Sonic and Knuckles will unlock the ability to go Super Sonic and Super Knuckles when you collect 50 rings. The game has been altered to restore changes made to Sonic 3 levels so the levels play and sound like they did in Sonic 3.
83 product ratings - Sonic & Knuckles (Sega Genesis, 1994 COMPLETE SET) AND Sonic the Hedgehog 2 New.
