FNF: The Corruption Inside Us
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FNF: The Corruption Inside Us


A FNF mod where you play as Evil Boyfriend against Shaggy in a full Week  with 4 songs and 5 extra songs in freeplay.

Will Shaggy be able to save Boyfriend from the corruption or end up becoming corrupted himself?

Matt also join forces with Shaggy to help.


  • The First Meet
  • Getting Ready
  • The Rage
  • Endurance
  • Intervention
  • Vain
  • Sudden-Death
  • Last-Round
  • final-destination-erect

The Corruption Inside Us Mod credits:

If you had fun and would like to keep up-to-update on the mod, make sure to follow and support these cool mod creators anyway you can on their social media accounts.

  • Mod Maker
    • Ali in the DARKNESS Ali in the DARKNESS mod maker
  • Song Makers
    • Ronezkj15: Final Destination Erect SONG
    • Spurk: Vain, Intervention SONGS
    • Tomz_ Tomz_ Sudden Death, Last Round SONGS
    • QWERTy: The Rage SONG
    • slinger Day 1,2,4 shaggy songs
  • Character Makers
  • Icons Makers

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 here.


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 and just have fun!