Sonic absorbs three of the World Rings and transforms into Darkspine Sonic, a darker, more violent version of Super Sonic, granting him the power to defeat Alf Layla wa-Layla, but Erazor subsequently boasts that he is immortal and will always return.
Sonic absorbs three of the World Rings. Sonic transforms into Darkspine Sonic granting him the power to defeat Alf Layla wa-Layla. Darkspine Sonic is a darker version of Super Sonic. This is more violent. He is immortal. He will always return. Erazor subsequently boasts this.