On a stormy night over a ruined metropolis—a battleground scarred by Eggman’s latest scheme—Sonic finds himself torn between two forces within. In one moment, the city’s defenders rally behind the blazing hope of Super Sonic, his body aglow with the positive power of the seven real Chaos Emeralds. In the next, an overwhelming surge of negative energy manifests as Dark Sonic, his fur turning a deep, menacing black as anger and betrayal fuel his every move

The conflict begins when Dr. Eggman, exploiting Sonic’s inner turmoil, activates an experimental device that distorts chaos energy. The machine’s energy wave shatters the balance inside Sonic’s heart, inadvertently splitting his being into two distinct entities. On one side stands Super Sonic—a brilliant, almost divine figure whose eyes spark with unwavering determination and whose aura radiates hope. On the other, Dark Sonic—a twisted mirror image, consuming rage and despair, with a feral snarl and a pulse of corrupted, negative Chaos Emerald power.

High above the shattered city skyline, atop a crumbling tower, the two forms confront each other.

“Enough!” bellows Super Sonic, his voice echoing with the resolve of every friend he has ever saved. “This inner conflict ends now. We cannot let Eggman’s treachery tear our world apart!”

Dark Sonic laughs—a harsh, jagged sound that resonates with the sorrow of lost innocence. “You speak of hope, but I embody what you fear: the raw, unfiltered power of anger. I am everything you deny, and tonight, I will show you the truth of chaos!”

the two briefly lock eyes—one pair filled with warmth and the other with hollow fury. In that moment, Super Sonic pleads silently, “I know you, the part of me that loves this world… Let go of the anger!” But Dark Sonic’s rage is overwhelming, a voice from the depths that echoes with every injustice suffered and every loss endured.