I am very surprised we dont have a thread on this. The game and especially its mods have had a lot of popularity and ive seen some very cringe stuff in the fandom.
for those who don't know "Friday Night Funkin' is a free-to-play and open-source rhythm game. Developed by a team of four Newgrounds users, the game has a play style that is similar to Dance Dance Revolution and PaRappa the Rapper, and with an aesthetic reminiscent of Flash games popular in the early-to-mid 2000s"- Wikipedia
Here is the link to the game https://www.newgrounds.com/portal/view/770371. Its currently down because the newground servers couldn't handle the load.
Here is the link to the exe https://ninja-muffin24.itch.io/funkin. It is currently a week behind because ninja muffin in all his great thinking decided to have a newgrounds exclusive week 7 release for a little while.
Its made by 4 people mainly
Ninja muffin -https://twitter.com/ninja_muffin99
Phantom Arcade -https://twitter.com/PhantomArcade3K
Also apparently johnny utah -https://twitter.com/JohnnyUtahNG is also helping out based on the kickstarter and tweets.
They released a Kickstarter recently that raised the needed amount in under 30 minutes.
The modding hub for this game is mainly on gamebanana https://gamebanana.com/games/8694