Another point I saw brought up is how Raiden is such a doormat in the movie, even more than he usually is. He can't fight directly with people (even though there's no tournament present that would prevent him from doing so) so he just zaps people away when the plot finds it necessary, but he could've utilized that power a lot better to help the heroes in multiple instances where Shang Tsung was blatantly cheating so it would have been morally fine to do so, but nah; better sit back and follow the broken rules that no one else seems to follow in the damn film.