In addition to being composed of nanomachines that were able to morph and adapt after each defeat, Dr. Robotnik outfitted E.V.E. with a DNA sample taken from Sonic himself (a quill taken from the hedgehog's hide), as well as organic material from Robotnik's own brain. These separate DNA patterns were meant to give E.V.E. Robotnik's genius in combination with Sonic's ingenuity. E.V.E.'s original form is that of a state-of-the-art, jet-pack-wearing SWATbot, but upon being scrapped by Sonic, it transforms into something suitable to counter Sonic's speed: a giant hornet. Thinking he is being attacked by separate robots, Sonic destroys E.V.E. twice, only for her to revert to a metallic ooze and reshape into a more lethal form.