Thread:Ultrasonic9000/@comment-26194462-20150311233029/@comment-4220590-20150502162956

The thing about Shadow's chaos control is one of the holes in the series. However, recent Q&A (following the games where he teleported without an Emerald) at Sonic Boom event, head of Sonic Team said Shadow needs an emerald; that is what is said and we cannot change that, no matter what we perceive

For Super Sonic, we cannot ignore that because it is the Word of God and it is still present, even following the updates with Unleashed. Word of God says Super Sonic drains energy, and that information is still written in subsequent games after unleashed, so it is still valid.