I started playing Lego Batman over the weekend. (Yes, I know it's a year old, but I've been busy, what with not working on my thesis and such.)
So I was pretty excited when I got to Chapter 3 level whatever and it was basically a rip-off of The Killing Joke, with Batman having to hunt down the Joker who's kidnapped Commissioner Gordon and stuck him in a cage in the middle of a dilapidated carnival.
Later, I got another Killing Joke surprise when I unlocked a new playable character that was, I swear to God, Joker wearing the outfit he wore when he shot Barbara. Sure, they call it "vacation" Joker or "tropical" Joker or something, but whatev