Let's be honest here, if you are both a Sonic fan and a Dragon Ball fan, you've wondered how things would go with Super Sonic and Super Saiyan Goku fighting each other. =P
Actually; I'm not too sure; since he uses the Chaos Control again later on, and Generations pretty much confirmed it with Classic Sonic learning the Homing Attack/Boost/whatever during the ending after, what, 2 hours or so of running around with Modern Sonic?