FNF Big Swingin’ Sister vs Sister Searest
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FNF Big Swingin’ Sister vs Sister Searest


A FNF mod where you play Boyfriend and Girlfriend went to visit her sister who is trumpet player and the leader of her Jazz combo that consist of some cool characters.

Meet all the band members and have some fun musical battle.

Very chill and awesome mod.


One brisk winter, Girlfriend takes Boyfriend to visit her older sister, Sister Searest! But unlike Daddy and Mommy, Sister’s… actually, genuinely pretty chill??? At Girlfriend’s suggestion, Sister wants to hear what Boyfriend’s got and invites him to sing along with her motley jazz band! Can you keep up with the beat, or will you fall flat?


  • Midtown Blues
  • Brassafrass
  • Hotfoot
  • Fireplace
  • Coolhead
  • Pesto Linugine
  • Pasionfruit
  • Heavy Liftin
  • The Lick
  • Kunai
  • Shotgun Shell
  • Epiphany
  • Saxpurgation
  • Endless

Meet the Band Members:

Sister Searest (she/her) is Girlfriend’s hip but doting older sister (or, at least, one of them), a trumpet player, and the leader of her jazz combo! She does have demonic fire powers, but she mostly uses them to boil water for ramen or something. She seems to be closer with Girlfriend than she is with the rest of her family…

VO: UprisingAttorney

Theo Parker (he/him) is the band’s pianist. A chill, relaxed, lovable guy from downtown Manhattan in New York, New York who appreciates the quieter small-college lifestyle. He often uses combo down-time to catch up on homework, but he’s always ready to go on the piano when it’s time to play. Also, no, he’s not Darnell Pico’s school. Nor is he related to Darnell Pico’s school.

VO: JtasticVA

Shorty Collins
(he/him) is the band’s tenor saxophonist, and one of its two horn players. He’s a fun, outgoing fellow, though a bit of a reckless flirt towards any guy that catches his fancy. (But he’s mindful of boundaries!) He lives in Kenosha, Wisconsin, and he swears Lake Michigan is haunted.

VO: Omahdon

Raquel Vasquez  (she/her) is the band’s bassist. An energetic, talkative woman, Raquel is the youngest (and tallest) of the group, and she’s definitely good at keeping the band peppy and on its toes by laying down the bass line. She moved from Puerto Rico to Chicago, Illinois when she was a kid, and quickly developed a taste for both Chicago-style hot dogs and deep dish. (Theo can’t be bothered to convince her of the joys of New York style pizza.)

VO: KurryArts

Minji Kim (she/they) is the band’s drummer. A rock drummer at her core, and a pretty big fan of Daddy Dearest’s work from back in his heyday. (They’re also a huge K-pop fan and jokes that the K-pop scene is pretty much heaven for her little Korean pansexual heart.) She lives in Laguna Beach, California, and often complains about its gentrification over the decades to whoever will listen at the college’s fitness center.

FNF Big Swingin’ Sister Mod Credits:

If you had fun and would like to keep up-to-update on the mod, please make sure to support the cool mod creators on their social media platform. Also follow for other projects they are working on.


  • Get the mod for your cool PC here

Game Engine Credits:

  • Shadow Mario: Main Programmer
  • bbpanzu: Additional Programmer
  • RiverOaken: Main Artist/Animator
  • Also everyone that contributed on GitHub.

Original FNF Credits:

  • ninja_muffin99 – Programming
  • PhantomArcade3k and evilsk8r – ARTISTS
  • kawaisprite – TASTY MUSIC
  • AND everyone that contributed to the GitHub source.

The goal of this web optimized port is to make FNF and this mod more accessible to players that can’t otherwise play it on their potato PC, on a Chromebook,  on their Mac, on their Linux, or simply can’t run the EXE files on their computer. Also help save hard drive space. Please keep in mind that this online web port might be slightly different and/or have missing mechanics than the PC version. So make sure to also get the PC version if you have a PC.

If you want a challenge, turn off Ghost Tapping in the settings.

Recommend using Google Chrome to play FNF Mod for the best performance.

Jam to the beats and just have fun!

FNF Big Swingin’ Sister vs Sister Searest is a online Rhythm Game you can play for free in full screen at KBH Games. Easily play FNF Big Swingin’ Sister vs Sister Searest on the web browser without downloading. Hope the game will bring a little joy into your daily life.