Friday Night Funkin vs Binding of Isaac

Boyfriend doesn't face a regular FNF opponent this time. In Friday Night Funkin vs Binding of Isaac, the battle happens against Isaac straight out of the dark basement from The Binding of Isaac. His whole backstory plays in the background as the tracks play, giving the songs a pretty heavy vibe.

Isaac ran from his room into the basement after his mom followed a "message from God" and tried to sacrifice him. Down there, he met twisted versions of his missing siblings, pets, and even his own mother. He cried nonstop, and those tears turned into the only weapon he had against every monster in the dungeon.

How to play?

Join this Friday Night Funkin mod through two clear modes: story mode and free-play mode. Start with story mode if you want a full FNF week against Isaac. Pick a difficulty in the top right corner before the track loads, then match the notes as they fly up the screen to keep Boyfriend rapping on beat.

Switch to free-play when you want quick practice or just the music. Free-to-play mode unlocks all three Isaac songs at once, so select one track, lock into the rhythm, and try to outscore the kid with tear-themed visuals behind him. Miss fewer notes than Isaac to hold the crowd, keep Boyfriend standing, and finish the week without losing the dungeon-style Friday Night Funkin musical battle.