Girls who are final bosses, or could be if they wanted.

Pen name: Delila H. Smith (the H is silent). Thirtysomething trans lesbian, snugglemuffin, girlthing. Devil but in like a catgirl sort of way, perennial emotional wreck, too gay for this. Minors, please don't follow.
Girls who are final bosses, or could be if they wanted.
Do they get a dramatic transformation sequence and enter into phase 2 after you drain their health bar?