Boyfriend's Big Brother is just as much of a musical genius as everyone else in the family, so after he came back from college, he wanted to check up on the rapping skills of his younger brother, to help our protagonist win this musical family feud right now, on the following songs:
BF Vs Big Brother, an FNF rap battle of the family!
Whether you are taking part in the action with the story mode or free play mode, winning is achieved in the same way, by reaching the end of the songs. To do that, when you see arrow symbols match above BF, know that this is when you have to press the identical arrow keys.
If you turn the progress bar towards you by the end, you win, but if you mess up the timing and miss too many notes in a row, you end up losing and having to start again from scratch. Good luck and all the best we wish you all!