Fun to watch, hard to hear.
I think it was a great idea to have your heroine's kill off the backstreet boys. I appriciate your style of animating, for it's very simple and doesn't waste any time.
All I can suggest is that you make it easier to hear the voices of your characters. I found their voices get flooded over by the background music.
Overall this was a fun watch, great job! I also really like the idea of allowing your audience to choose what happens next; it's something a lot of animators don't consider as adding entertainment value to their work.