Key Ver.2

Hear is Key in her 2nd form. As you can see she has removed her helmet with the fake Core eye on it.
She was awoken my an alien science team she couldn't remember anything about herself. It took the rest of the Core 5 years to reawaken and attempt to hunt her down. Since then she has bean doing what she can to fight the Core in any and every way she can.
The reason her right arm looks different is because her old one was ripped off in a fight, she replaced it with a Corebot Assault Drone's arm she... acquired without permission. The new are has a large array of weapons and is allot stronger.
Now before you say anything about the weapon she has in her left hand let me just say it's not a light saber, it's a static sword. Static swords are solid energy that cause heat and electric damage when they strike something, it's also plugged into her so she needs to be careful how much she uses it.