FNF Undertale Last Breath Vs Sans

Epic Rap Battle Meets Web Optimization

Dive into the ultimate Friday Night Funkin’ showdown withUndertaleLast Breath VsSans, a fan-made mod that brings intense musical battles to your browser. This web-optimized version makes it easier than ever to take on Sans, the heroic protagonist ofUndertale Last Breath, in a series of rhythmically charged rap-offs.

Originally designed for desktop, this mod is now accessible to a wider audience — whether you're on a low-end PC, Chromebook, Mac, or Linux system, you can enjoy the challenge without downloading or installing anything.

Tracklist: Show Your Rhythm Skills

Face off against Sans across five uniquely crafted songs, each with its own challenge level and musical flavor:

• Beautiful Day
• This is not Funny
• My Last Breath
• Remember
• Bad Tom

Each track offers a distinct vibe and increasing difficulty, making this mod a true test of yourFNFskills. The music stays true to theUndertaleaesthetic while bringing fresh energy to the fight.

What Makes This Mod Special?

This isn't just another FNF mod — it's a crossroads between two beloved universes. Combining the lore ofUndertaleand the high-energy gameplay ofFriday Night Funkin', this mod gives fans a chance to go head-to-head with one of the most iconic characters in gaming. The web version ensures that even more players can jump in and experience the thrill, no matter their device.

Mod Creators & Contributors

A big thanks goes out to the talented team behind this mod:

Mod Development Team

• IGUHz– Mod creator
• GaKuun!– Creator
• ShadowMario– FNF Game engine

You can support these amazing creators by following them on their social platforms and showing some love for their hard work.

Original FNF Credits

We also recognize the original developers who made this possible:

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

Enjoy the mod, and remember to show appreciation to those who made it all possible!