Board Thread:General Discussion/@comment-26167440-20160111225919/@comment-26253917-20160124064125

Actually, he would need fifty rings to turn into Super Sonic in gameplay. However in Sonic Advance 3, the ring counter was zero and Sonic was still able to turn into Super Sonic and stay that way before charging into battle. Also in Sonic Unleashed in both versions, Sonic does not lose any rings and has a health bar.

In Sonic Generations, Sonic was able to restore the Chaos Emeralds by fixing time and space.