Those who haven’t yet purchased this game, but are planning to, will be happy to hear that all the fatalities have already been performed and compiled into an eight minute long video.
You’ll see a couple of nice ones, but it’s a bit funny seeing DC trying to evade the term fatality and using "heroic brutality" instead. You know, Superman, Batman, Wonder Woman, etc. would never "fatalize" someone. C’mon, it’s a game, no matter how "politically correct" you describe it, it’s still a violent thing to do – and I’ve grown to love it in this game.
You should also know that this compilation contains both versions of Joker's fatality; the original and the U.S. edited one which doesn't show the bloody part.
You can view the fatalities here