Giga Metal

Giga Metal is the result of Metal Sonic combining his power with that of the Phantom Ruby's, resulting in a gargantuan robot with many unique abilities. Dr. Eggman utilized to his advantage in order to defeat Sonic and his friends in Stardust Speedway Zone.

Appearance
Much of Giga Metal's design borrows heavily from its base form, though has been transformed by the power of the Phantom Ruby. Metal now stands many feet taller than his original form,