Pathological. Psychotic. Neurotic. Vengeful. Four words that describe Harley Quinn in this trailer and just about every woman I've ever known. I'm only kidding about the last part, but you can see where the developers were going with this.
A newly released trailer for Arkham City: Harley Quinn's Revenge shows us why "payback's a bitch" and why Harley's not someone you want to mess with as she takes out all of her anger on Batman by putting a bullet in him.
Harley Quinn's Revenge will slide into both PSN and Xbox Live Arcade stores, as well as the PC on May 29, and it's set to conclude the story to Arkham City. It's the first (well, after the Catwoman DLC) to offer a lengthy campaign, and you'll play the role of Robin this time around.
Keep an eye out for it.