FNF vs Detras Mental Decimation

📅 25.09.2021 Played 126 times 2 votes

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About FNF vs Detras Mental Decimation


The two characters that are now going to battle against one another in a rhythm battle are part of the same mind, with this character having split personalities, which you have already probably realized from the game's title: FNF vs Detra’s Mental Decimation, where you will see a rhythm battle between these characters on seven awesome songs:

  • Retricus
  • Covetous
  • Terminus
  • Embark
  • Facade
  • Compel

Decimate your opponent with your excellent music skills!

Whether you play this game in the story mode or free play mode, your target remains identical, which is playing all the notes of the songs according to their charts, so that when arrow symbols above BF's head match with one another, you will press the same arrow keys on the keyboard.

Know that if you miss doing that too many times in a row, you are going to lose the whole game and have to start it again from scratch, something we don't wish for any of you, only wishing you the best and tons of fun!


  • Programming by ninjamuffin99
  • Art by PhantomArcade 3K and Evilsk8r
  • Music by Kawai Sprite

Mod developed by:

This is an open-source game, and you can support the developers here.

Game controls

Use the arrow keys.