Friday Night Funkin’: VS KittenStein

Rating:4.9 (115 votes)
Released:May 11, 2026
Technology:HTML5 (Unity WebGL)
Platforms:Browser (desktop, mobile, tablet)

Rhythm Meets Mad Science in VS KittenStein

Step into the lab of the eccentric—and slightly terrifying—Dr. KittenStein inFriday Night Funkin’: VS KittenStein, a fan-made mod that brings a purr-fectly spooky twist to theFNFuniverse. With original songs, custom animations, and a unique battle against a mad scientist cat, this mod delivers a fresh and exciting experience for rhythm game fans.

Whether you're a long-time FNF player or just looking for a fun browser game,VS KittenSteinoffers a compact yet thrilling musical showdown that’s now available unblocked and optimized for any device.

Epic Showdown: Two Original Songs

InVS KittenStein, you’ll face off against the deranged Dr. KittenStein in a high-energy rap battle featuring two custom tracks:

  • Steins Lab– A groovy intro to the madness, setting the stage in the good doctor’s twisted laboratory.
  • Its Alive– The intensity ramps up in this electrifying second track, bringing the battle to life with killer beats and lyrics.

Each song comes with its own set of unique animations, cutscenes, and voice acting, making the mod feel like a complete mini-game rather than just another FNF mod.

What Makes This Mod Special?

This mod isn't just about the music—it's a full package. From the eerie science lab visuals to the animated reactions of the characters,VS KittenSteinimmerses players in a one-of-a-kind FNF experience. The mod also features:

  • All-neworiginal musiccomposed specifically for the mod
  • Custom animations and cutscenesthat bring the story to life
  • Voice actingfor a more cinematic feel
  • Aweb-optimized versionthat works seamlessly on any device—no need to download or install anything

Meet the Team Behind the Mod

VS KittenSteinis the result of a collaborative effort from a talented group of modders, artists, musicians, and animators. Here's a look at the amazing people who made this mod possible:

Mod Creators

NameRole
KittenSneezeDirector, Artist, Animator
Silva HoundMusician
FoodietiMusician
BinaphobiaMusician
MuscapeMusician
RaZurArtist
DancetrapCoder
pupz0neCoder
JGlazeyAnimator
DanDaMiniFigAnimator
WolfWrathKnightAnimator
TenzaltLogo Artist
AvengeCharter
BbyamArtist

Game Engine Contributors

The mod runs on a modified version of the original FNF engine, with support from:

  • ShadowMario– Main Programmer
  • bbpanzu – Additional Programmer
  • RiverOaken – Main Artist/Animator
  • And all the community members who contributed via GitHub

Original FNF Team

A big shoutout to the originalFriday Night Funkin’team, whose base game made this mod possible:

  • ninja_muffin99 – Programming
  • PhantomArcade3k and evilsk8r – Artists
  • kawaisprite – Composer
  • And everyone else who helped build the open-source foundation on GitHub

Play Anywhere with Web Optimization

One of the biggest highlights ofVS KittenSteinis itsbrowser-friendly, web-optimized version, which makes the mod accessible to a wider audience. Whether you're on a school Chromebook, a Mac, Linux, or a low-end PC, you can enjoy the mod right in your browser without worrying about downloads or compatibility issues.

⚠️ Note: While the web version is convenient, it may differ slightly from the PC version in terms of features or performance. For the full experience, consider downloading the original mod if you're able to run it locally.

Dive into the lab, challenge Dr. KittenStein, and show off your rhythm skills in this delightfully weird and wonderfully crafted FNF mod!