Black Eggman
From Sonic Retro
Metal Robotnik, referred to "Black Eggman" in the Japanese version, is the antagonist in the first half of Sonic the Movie. He's a giant egg shaped robot with interchangable arm attatchments. He also has missle launchers built into his chest area and expandable wings and a jetpack on his back. His voice and personality perfectly match that of Robotnik. It is later found to be a mecha driven by Dr. Robotnik and the "kidnapped" Princess Sara, which is completely destroyed by Sonic.
Attacks:
-Missle Launchers (Located in Chest)
-Interchangable Arm Attachments, including machine guns and pounding fists.
-Goo-like shots which fire from a compartment in his rear.