FNF vs Jeffy v2 Mod

Rating:4.2 (94 votes)
Released:May 11, 2026
Technology:HTML5 (Unity WebGL)
Platforms:Browser (desktop, mobile, tablet)

Get Ready to Battle Jeffy in This HilariousFNF Mod

Dive into the chaos with theFNFvs Jeffy v2 Mod, a fan-made update that brings the iconic SML (SuperMarioLogan) character Jeffy into Friday Night Funkin’ for an epic rap battle. Whether you're a long-time FNF player or a fan of the SML series, this mod promises a fun and challenging experience with a completely newWeek 2. Built on the powerfulPsych Engine, it’s fully optimized to run smoothly across a wide range of devices — from low-end PCs to Chromebooks, Macs, and even Linux systems.

What Makes FNF vs Jeffy v2 Special?

This mod stands out with its unique take on Jeffy, combining his quirky personality with intense musical showdowns. The mod doesn’t just stop at visuals and music — the gameplay is designed to challenge even seasoned FNF players, with fresh charting and dynamic stage elements. It's a must-play for fans of both rhythm games and SML content.

Tracklist: Show Off Your Rhythm Skills

The mod comes packed with a set of high-energy songs, each with its own style and challenge level:

  • doh-de-oh
  • pencil
  • Bang Em and Slang Em
  • Play Doe
  • Real boy
  • Fraud
  • Demented
  • Run!!

Each track immerses you further into the world of Jeffy, with catchy beats and clever lyrics. You can enjoy the full soundtrack on [Carrmy's Channel].

Gameplay and Features

Powered by thePsych Engine, the FNF vs Jeffy v2 mod delivers smooth performance and enhanced visuals, including custom animations and background effects. The mod introduces a new set of characters, stages, and difficulties, making it a fresh addition to the FNF universe. The controls are responsive, and the mod is fine-tuned to work well on both mobile and desktop platforms.

Mod Credits

A big thanks goes to the talented developers who brought this mod to life:

Main Creator

  • Carrmay– Everything from art to coding

Psych Engine Team

  • Shadow Mario– Main Programmer
  • bbpanzu– Additional Programming
  • RiverOaken– Main Artist/Animator
  • And all the amazing contributors on GitHub

Original FNF Creators

  • ninja_muffin99– Programming
  • PhantomArcade3KandEvilsk8r– Artists
  • Kawai Sprite– Music
  • And the rest of the FNF community for their open-source contributions

Play Anywhere, Anytime

This web-optimized version of the mod was created to ensure that anyone, regardless of their device, can enjoy the thrill of FNF. No need to worry if you're on a school Chromebook, a Mac, or a low-spec PC — the FNF vs Jeffy v2 mod is ready to go!

So, are you ready to face off against Jeffy? Grab your controller, hit the notes, and show him who's the real star of this battle!