Fan Casting Harley Quinn in Batman And Batwing: Mask of The Phantasm

During the final battle, Luke Fox and a few other members of the Batfamily are in a scuffle with Harley Quinn, and are on the verge of being oushed out the window of the building they are in, when Harley turns to the Joker, picks up a crowbar, and smacks him across the side of the head with it, giving Andrea Beaumont enough time to blow up the building from the base. After these events, Bruce Wayne asks Harley why she attacked Jerome, where Harley replies with, ''That son of a b*tch abused me. He was nothing like Arthur, or Jack, or even Dexter. I hated him. And I felt it was time to stand up for myself at last.'', with Harley joining the Batfamily with open arms.