The Fleetway team

The super transformation was based more on the Sonic comics of the UK publication (by Fleetway Editions).

If you want a quick explanation, the continuity of those series are way different than the ones of Archie comics, basically, Sonic usually tried to avoid transforming into Super Sonic, only happens when he was exposed to the chaos energy or to a high level of stress and anger. If he made it, Sonic lose all kind of consciousness and became Super Sonic, but this time, more like a powerful and evil creature who just loves destruction and chaos.................and well, unfortunately, Rainbow Dash had the same luck