Doppelgänger

A robot version of Gracey created by Rodger Gizanis. She was created to eradicate Gracey and her group in the Desert Region to keep her away from him, and to not let her find out more about the Dream Monsters; but there was faulty wiring that cost him a lot of time. Doppelganger set off to find Gracey, but she wasn't programmed like he intended her to be, she was a polar opposite.

She turned out to be a completely sentient robot, learning more about her surroundings constantly, and most importantly, she did not want to kill Gracey. She joined her and her group during their first encounter, and they broke off the microchip on Doppelganger that was used to track her, and she was completely cut off from Rodger forever.

She's able to use her mechanical abilities to her advantage, and is easily able to transport herself places by jets in her feet. Although she's a great technological feat, she has a huge weak spot which is the large key on her back that is automatically always turning. If it's ever manually stopped, she will power down.