Ruler With Mr. Baldi Basics
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Ruler With Mr. Baldi Basics


Ruler With Baldi is a Friday Night Funkin Mod where boyfriend and his math teacher Baldi sing a new song called “Ruler”.

Teacher Baldi will ask you very simple math question using the note mechanics. Press only the note with the correct answer.


After BF gets into a debacle with Dad, the dad banishes BF and GF into a world were all day everyday is school, and someone has to teach at a school. This teacher seems off however, rap against him and he might just spare your life.

Ruler With Baldi Mod Credits:

Game Engine Credits:

  • 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. Also help save hard drive space. Please keep in mind that this online web port might be slightly different and/or have missing mechanics than the PC version. So make sure to also get the PC version if you have a PC.

If you want a REAL Challenge, turn off Ghost Tapping in the setting.

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

As always, good luck and Have Fun!

Ruler With Mr. Baldi Basics 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.