Usually, when Sonic gathers the seven mystical Chaos Emeralds or comes into contact with Chaos Energy, he absorbs that energy & turns into Super Sonic; A golden, powered-up form that takes Sonic's good nature & channels it into immense magical power.
THIS IS NOT THAT SUPER SONIC.
In the universe of Sonic The Comic ( known as the Fleetway Dimension ), any amount of extreme stress or exposure to Chaos Energy turns Sonic into the ultimate embodiment of evil. The Super Sonic from this universe is a sadistic & remorseless creature with enough power to destroy an entire planet.
His speed & strength are increased immensely from his normal blue self, with added abilities like lazer vision, flight, the ability to transfer Chaos Energy into an unsuspecting victim ( this usually kills them ) & the power to turn himself into a ticking electron bomb. He's virtually invincible & takes joy in killing anyone & destroying anything he feels.
The only thing stopping this creature is it's inherent connection to Sonic, as he can only be unleashed for a matter of minutes at a time. The damage he can do within that short time, however, is undoubtedly horrifying.