FNF vs Binding of Isaac (Week 2 Update)
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FNF vs Binding of Isaac (Week 2 Update)


A mod of Friday Night Funkin where Boyfriend rhythm battle Isaac, a classic flash games character, from the game Binding of Isaac. That was later made into a really big and popular game.

Updated with week 2 and more stuff.


  • -New songs in Story Mode
  • -New mechanics
  • -Songs from 1.0 have been given new vocals as well as sprites (You can still switch to the old sprites in the options menu if you want to… for… whatever reason… eww)
  • -2 different story paths (based on difficulty chosen and different path)
  • -Animated Cutscenes
  • -Bonus Songs
  • -Achievement system
  • -Tons of little cameos and easter eggs
  • -A cow on a trash farm (?)


  • Sacrificial
  • Innermost Apocalypse
  • Decide
  • Delirious
  • Misperception
  • Acceptance (unlocked after beating on eternal and evil path in story mode, oh botplay also need to be disabled :D)
  • Avarice (unlocked after beating on eternal and evil path in story mode, oh botplay also need to be disabled :D)
  • Delirious (Eternal difficulty in freeplay after getting unlocking Acceptence and Avarice)

Mod Credits

Make sure to support mod creators on their social media by subscribing, following, liking, etc.

  • RxB: Director, coder, artist, animator, composer.
  • Lion Ladders: Composer, playtester.
  • Improvidence318: Voice acting, script writing.
  • Edmund McMillen: Creator of Binding of Isaac game.
  • You can always download the mod for your fast desktop PC on HERE.

Original FNF Credits:

  • ninja_muffin99 – Programming
  • KadeDev – Programming
  • PhantomArcade3k and evilsk8r – ARTISTS
  • kawaisprite – MUSIC

The goal of this web optimized port is to make FNF and this mod more accessible to players that can’t otherwise play it on their potato PC, on a Chromebook,  on their Mac, on their Linux, or simply can’t run the EXE files on their computer.

As always, good luck and Have Fun!

FNF vs Binding of Isaac Week 2 Update is a Rhythm Game you can play online for free in full screen at KBH Games. No download or installation needed to play this game. Hope this game bring a little joy into your daily life.