After traveling back through time, Boyfriend encountered a Knight, and a magical one at that, which is how BF found out that he needs to beat him in a musical battle to get back to his present day, something that you will do on four awesome original songs:
Defeat the Knight and return back to your time!
Whether you choose the story mode or free play mode, the way to win is the same, and it is by reaching the end of the songs, which is done by playing your notes in the chart when your turn comes.
To do this, there will be arrow symbols matching above BF’s head, and you will press the identical arrow keys from the keyboard to hit said notes. Don’t miss doing it too many times in a row, or you lose the whole game. All the best we wish you all!