Metal Sonic

Metal Sonic is Sonic's robotenemy. After Dr. Eggman is the most famous villain. He was first in Sonic the Hedgehog CD, and last in Sonic Rivals 2.

Friends

 * Dr. Eggman
 * Eggman Nega

Enemies

 * Sonic
 * Knuckles
 * Tails
 * Eggman Nega (Sonic Rivals 2 and Sonic Rivals)
 * Silver
 * Espio
 * Vector the Crocodile
 * Big the Cat