FUNKIN' IS FUEL

Friday Night Funkin' rap battles inside ULTRAKILL.

Every level hands you a mic. Throw it at an enemy and the level freezes into an FNF rap battle against that enemy. The song is random each time, picked from your own Friday Night Funkin' install and every mod in it. Win the song and the enemy dies. Run out of health and it's game over.

You need Friday Night Funkin'

This mod uses your own copy of Friday Night Funkin' (V-Slice), the free download from itch.io or Newgrounds. It reads the songs, charts, note art, sounds and Boyfriend from that copy, along with any FNF mods you've installed there. Nothing from FNF is included in this package.

The mod looks for Funkin.exe in your Downloads, Desktop, Documents, Program Files, Games folders and the itch app. If it can't find it, press N in a level and paste your FNF folder into the mic menu.

Controls

Key	What it does
M	Throw the mic. Hit an enemy to start a rap battle; if it misses, it comes back.
A S W D or arrow keys	The four arrows
Punch (your bind)	Parry a blue attack
Dash (your bind)	Dodge an attack, blue or yellow
N	Mic menu
F8	Pose maker

All keys can be changed in Options > Plugin Config > FUNKIN' IS FUEL.

Features

• Battles: real FNF charts from the base game and your mods, at any difficulty. Holds, splashes, ratings, combos, the countdown, health and score all work like FNF. Tricky's hell notes and similar "don't hit" notes hurt you.
• Chart events play in 3D: FocusCamera, ZoomCamera, camera bops, scroll speed changes and animations drive a side-on stage camera. Mod events become screen effects (flashes, shakes, lights, lyrics, strum tricks, health drain). Songs without camera moves get them, and a remix adds extra effects to every song.
• Attacks mid-song: the enemy flashes blue (parry it back for health) or yellow (dodge it). Songs' own dodge mechanics, such as QT's sawblades, turn into attacks too.
• Bosses are more intense: boss battles use the busiest songs on their hardest difficulty, scroll faster and drain health. Bosses attack far more often, chain combos, hit harder, and the stage has a red pulse with the camera hitting every beat. A slider scales all of this.
• Who raps for you: V1 holding the mic, Boyfriend (the FNF sprite), or both.
• Poses: the enemy, V1 and Boyfriend strike a pose for every arrow, flinch on misses and dance on the beat. Every other enemy around dances while you rap.
• Pose maker (F8): make your own animations for V1 or for any enemy type. Aim at an enemy and press F8. There's a slot for each direction, each miss, idle, hey, attack and hurt. You can use keyframes, rotate bones, start from the character's own animations, and mirror left/right. Battles use what you make.
• Mic menu (N): the level freezes while it's open. You can:
  • queue the next song (with search),
  • choose the difficulty and who raps for you,
  • choose where Sick/Good pop up,
  • set downscroll, middlescroll, attacks, boss intensity, scroll speed, volume and audio offset.

Notes

• Losing a rap battle deals 100 damage by default, like an FNF game over. You can lower it in the settings.
• Rap battles freeze the level for you, so don't use them in online multiplayer sessions.
• Your custom poses are saved in BepInEx\config\RapBattle\Poses.
• To use a different mic model, plugins\tools\convert_mic.py (a Blender script) turns an FBX, OBJ or GLB into the mic files in plugins\mic.

Credits

Friday Night Funkin' is by The Funkin' Crew. ULTRAKILL is by Arsi "Hakita" Patala and New Blood. This is a fan mod made by a fan of both.