Use the 4 arrows on your keyboard in synchronization with the colored arrows that appear, try to miss as few notes as possible to gain the advantage over your opponent and thus be able to defeat him in a duel. You will need to rhythmically press the keys symbolizing the notes of the song when they appear on the screen. Friday Night Funkin' tells the story of Boyfriend, almost always accompanied by Girlfriend, who challenges in musical battles opponents who are each more formidable than the last. The FNF games include the original game Friday Night Funkin’, which popularized musical battles with its cult character Boyfriend the rhythm's king, as well as many community-created mods adapted for browsers to be playable without download.