Metal Overlord

Metal Overlord is a perfect transformation of Metal Sonic. Perfect transformations are Perfect Chaos, Megazard, Solaris, and Perfect Dark Gaia, Nega-Wisp Armor, and Mega Death Egg Robot Phi.

History
When deciding to take the matter of defeating his rival Sonic and conquering the world into his own hands, Metal Sonic had the idea of becoming Metal Overlord, a form with the power necessary for both tasks. To achieve this form, Metal Sonic needed data from sufficiently strong people, and as such lured Team Sonic to the Egg Fleet to distract Sonic for good while he would copy the team's data along the way. Additionally, he needed Chaos' data and kidnapped Froggy and Chocola. When Team Dark, Team Rose and Team Chaotix joined the adventure, Metal Sonic copied their data as well.