Metal Sonic 3.0, also known as Metal Sonic Mach 3.0, is a character that appears in the Sonic the Hedgehog series. It is Dr. Eggman Nega's improved edition of Metal Sonic, which acts as a rival to its predecessor.
In a desolate dark future forever ruled by Neo Sage and Neo Metal Sonic, one lone hedgehog will stop at nothing to collect the Chaos Emeralds, so he can return to the past and undo the timeline of the Eggman Empire.
