FNF Undertale · Free Undertale Mods for Friday Night Funkin' Online

This page is where ninjamuffin99's music rhythm phenomenon, FNF, meets Toby Fox's role-playing game universe, Undertale. With both Undertale and Friday Night Funkin' being actively community-driven, there has been a lot of crossover mods spawned for FNF, featuring Sans, Asriel, Spamton and other Undertale characters as Boyfriend's opponents. Let's take a look at the best of those mods!