Black Doom
Age: ???

The main villain in Shadow the Hedgehog. He is the first evil character that remains evil through the whole game. He feels that humans are weak and that the black arms are the superior race. He promises to tell Shadow his past if he retrieves the seven chaos emeralds for him. Apparently shadow promised Black Doom that he would 50 years ago.


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The Bio Lizard (picture from Sonic X)
The Bio Lizard is more like a final boss but is still a villain. The Biolizard is the prototype of the ultimate life form. So this is basically a weird version of Shadow. He appears at the end of Sonic Adventure 2 Battle. His only weakness was the glowing life-support on it's back.


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Eggman Nega

Eggman Nega is from the same dimension that Blaze and Silver are from. He is just like Eggman except more evil, and acts a lot more polite. He is the second villain to stay evil for the entire game.

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Metal Sonic

Metal Sonic goes by many names; Metal Sonic, metal, Hyper Metal Sonic, Mecha Sonic, Neo-Metal Sonic, and Metallix. He was created by Eggman to destroy Sonic. He is surprisingly faster than Sonic. He is very strong and he is very clever. In most of Metal's appearance's he has played a minion but in Sonic Heroes he locks Eggman away and pretends to be him. He then transforms into the metal madness and then the metal overlord.
Neo metal Sonic was the version of Sonic in the game Sonic Heroes.

Picture of Neo Metal Sonic


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Mephiles the Dark

Mephiles appeared in the game Sonic the Hedgehog 06.
He is a blob-like demon who took up the form of Shadow through his shade. This creature is one of the two forms that make up Solaris, the entity that attempts to consume all of time. He is also the main villian in the Shadow the Hedgehog storyline in the game Sonic the Hedgehog 06.

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Dark Gaia

Dark Gaia is a creature that is sealed in the planets core. Every one million years he awakes from his slumber and destroys the world to be rebuilt by Light Gaia. Eggman woke Dark and Light Gaia before they're slumber was over and Dark Gaia spread around the world due to being unstable. (seen in the intro)

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