An FNF battle against Slenderman was a long time coming, since horror urban legends from the internet have always appeared here, and this is one of those that got really popular a few years back, even having movies made for it, and now you can face it with music and rhythm on the following songs:
Can you help BF defeat the horrific Slenderman, only in FNF?
Whether you are playing in the story mode or free play mode, make sure to reach the end of the songs by playing their notes according to the charts, which is how winning is achieved.
So, when you see arrow symbols float and match above BF, press the identical arrow keys, since that is how notes are hit. Don't miss doing it too many times in a row, or you lose and have to start again from scratch. Enjoy!