FNF X UnderWrap
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FNF X UnderWrap


FNF X UnderWrap is a Five Night Funkin Mod where Undertale mod where characters’ roles are swapped, as well as their personalities.

For Example Sans is the excitable, confident, extremely optimistic human hunter, while Papyrus is the laid back.

This is a Psyche engine port of the original mod.


  • eh-eh-eh
  • royal
  • magnificent
  • shiftless
  • lazybones

FNF X UnderWrap Mod Credits:

If you had fun and would like to keep up-to-update on the mod, please make sure to support the cool mod creators on their social media platform.

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 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!