FNF vs Flowey

Rating:4.9 (85 votes)
Released:May 11, 2026
Technology:HTML5 (Unity WebGL)
Platforms:Browser (desktop, mobile, tablet)

A Rhythmic Crossover Between Worlds

InFNFvs Flowey, the beloved rhythm gameFriday Night Funkin’takes a dark and musical turn asBoyfriendfaces off against some of the most iconic characters fromUndertale. This fan-made mod brings together two distinct universes for an unforgettable rap battle experience—all powered by the robustPsych Enginefor smooth web-based gameplay.

Story: A Mysterious Encounter

The adventure begins when Boyfriend andGirlfriendare enjoying a peaceful picnic in a sunny meadow. Their day takes a strange twist when they stumble upon a mysterious entrance leading deep underground. After a long fall, they awaken in a bizarre new world… and come face-to-face with a certain smug, talking flower:Flowey.

This sets the stage for a series of intense rhythm battles against memorableUndertalecharacters, each with their own unique style and challenge.

Tracklist: Show Your Skills

Each song inFNF vs Floweyis designed to capture the essence of its respective character, blendingUndertale’siconic motifs withFNF’shigh-energy beats:

  • Making Friends(vs Flowey)
  • FreeplayUwa(vs Napstablook)
  • Teamcore(vs Temmie)
  • Hard Mode(vs Sans)

These tracks offer a range of difficulty levels and musical styles, making each encounter both challenging and rewarding for players of all skill levels.

Gameplay: Psych-Powered Performance

Built on the widely usedPsych Engine,FNF vs Floweydelivers a seamless and responsive gameplay experience. The mod is fully optimized forweb play, making it accessible to anyone who may not be able to run the original desktop version—whether due to system limitations, operating system constraints, or device restrictions like on Chromebooks, Macs, or Linux machines.

Meet the Team Behind the Mod

A talented group of creators came together to bringFNF vs Floweyto life. Here’s a look at the passionate individuals who made this mod possible:

Main Mod Creators

RoleCreator
Director, Artist, ComposerSoyJulian_34
Principal ProgrammerManux12
Secondary ProgrammerJloor
Sprite & Movie AnimatorZERO ARTIST
CharterVPPR
CharterDaim
Composer (Sans music)David Miles
Trailer EditorKenethYT
Psych Engine PortPlusardx

Original Game Credits

Undertale

  • Toby Fox– Creator ofUndertale

Friday Night Funkin’

  • ninja_muffin99– Programming
  • PhantomArcade3kandevilsk8r– Artists
  • kawaisprite– Music
  • And everyone who contributed to the open-source project on GitHub

Play Anytime, Anywhere

With its web-friendly build,FNF vs Floweyensures that fans of bothFNFandUndertalecan enjoy this thrilling crossover no matter their device. Whether you're reliving the charm of the underground or discovering it for the first time, this mod promises a rhythmic journey worth taking.