FNF vs Bill Cipher (Gravity Falls)
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FNF vs Bill Cipher (Gravity Falls)

A mod of Friday Night Funkin where Boyfriend rhythm-battle against Bill Cipher from Gravity Falls.

Updated with new background, note mechanics, short cutscenes, and a new life lottery scrapped song.


Listen to the OST on the composer’s YouTube channel below:

Who is Bill Cipher?

Bill Cipher was a triangular inter-dimensional demon, formerly existent only in the mindscape before succeeding in gaining access to the real world. He had been running amok in Gravity Falls, Oregon since being summoned by Stanford Pines over thirty years ago, and was also known for his mysterious demeanor and sadistic humor. Bill is the main antagonist of Gravity Falls. (Wiki fandom)

Development Note:

Download all the mod assets for this mod on Banbuds channel, download in the description. Apparently the mod is abandoned, so you can use the any of the assets to make your own high-effort Bill Cipher mod if you want, so the assets doesn’t go to waste.

Update: Looks like LUCTIE answered the call

Mod Credits:

This is a free game, so if you had fun and would like to keep up-to-update on the mod, make sure to support mod creators anyway you can, for example, subscribing, following, liking, their social media pages.

Psych FNF Game Engine:

  • Shadow Mario: Main Programmer
  • bbpanzu: Additional Programmer
  • RiverOaken: Main Artist/Animator
  • Also everyone that contributed on GitHub.

Original FNF Credits:

  • ninja_muffin99 – Programming
  • PhantomArcade3k and evilsk8r – ARTISTS
  • kawaisprite – TASTY MUSIC
  • AND everyone that contributed to the GitHub source.

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.

If you want a challenge, turn off Ghost Tapping in the settings.

Recommend using Google Chrome to play FNF Mod for the best performance.

Jam to the beats of the rhythm and just have fun!