The Friday Night Funkin mod features Boyfriend waging an epic rap battle against Sunday while slowly waking up from his sleep. Sunday needs a new vocalist for her band. think you can give it a chance? This time, Boyfriend may not be able to cope, but most likely he will still be able to do it, so make a try and then everything will work out for you. It is important to understand that during a musical battle, you will need to accurately and in time to hit the keyboard arrows so that the music plays as best as possible, so try as much as you can. Sunday is certainly strong, but believe me, he can underestimate you, and as a result, you can beat him.