A form of Sonic the Hedgehog after acquiring the World Rings in the game Sonic and the Secret Rings He is similar to Dark Super Sonic, as he is powered by negative emotion. His fur turns indigo and he becomes somewhat pale. His eyes,irises and mouth are not visible. His attacks are mainly close range, as opposed to Super Sonic who uses boost and energy abilities. Unlike Super Sonic, Darkspine Sonic doesnt suck up rings in this form.
Sonic Fan: Dude Darkspine Sonic kinda sucks,
2nd Sonic fan: I know, Excalibur Sonic was better.