Friday Night Funkin' is a rhythm game in which the player must pass multiple "weeks", each containing three songs. Each week, the player faces a different opponent. To win the heart of your sweetheart and get his father's agreement you will have to beat him in rhythm competitions and prove that you are a better singer than him.
In Week 2, Skid and Pump (a cameo of characters belonging to the Youtuber Sr. Pelo) celebrate Spooky Month as they do always, they come across Girlfriend's parents' house and a monster (known as Monster) wants Skid and Pump to bring the Girlfriend over to be his "special treat" and to challenge Boyfriend to win the Girlfriend. However, the monster was actually tricking Skid and Pump in order to eat Girlfriend and rap battles Boyfriend on an unused track for the week titled "Monster", leaving Week 2 to be the only week with 2 songs instead of 3, however the track is planned to be re-added to the game at some point.