He was once a Gizoid named Daremerl created 由 Gerald Robotnik along with Emerl. He was built as a guard to keep unwanted visitors out of 太空 Colony A.R.K. Back then he was friendly and very helpful. He would always play with Maria Robotnik, and help Professor Robotnik around the laboratory. He even helped with Project Shadow. When G.U.N came, Daremerl tried to fend off the troops, but was over powered, and was knocked out of a window sent drifting out into space, eventually sent crashing down to the planet below. There on Mobius, years later, Dr. Eggman found Daremerl in the middle of no where broken, but still conscious. Eggman noticed his grandfather's logo on Daremerl's foot and said, "I see, so this is one of my be loving grandfather's creations. I should take this scarped robot to my lab and give him a bit of `remodeling`." So Eggman did as such.
After 3 years of Project R.D.T.D., Eggman finally completed the new and improved robot, Metal Drakero. He's made from the remains of Daremerl, and the A.I. Chip was reprogrammed to be as evil as Metal Sonic, but Eggman kept the memory of his grandfather and cousin in the A.I. Chip as a reminder of what happen on A.R.K. 50 years ago.
