FNF Vs. Sans: Last Determined

Last Determined is a crossover rhythm mod for Friday Night Funkin’ where Boyfriend faces off against Sans from Undertale. This fan-made mod blends the worlds of FNF and Undertale, delivering intense rap battles inspired by the mysterious underground setting.

The story begins when Boyfriend is suddenly transported to a strange mountain while on his way to meet Girlfriend. Guided by a mysterious figure, he finds himself entering an unfamiliar world beneath the surface. Whether it’s his first visit to the Underground—or a place he’s somehow already been—Boyfriend must rely on rhythm to survive the encounter with Sans.

Players can experience several versions of the main songs, offering different takes on the mod’s soundtrack.

FNF Last Determined Songs

• Start of a Tale
• Start of a Tale (Old V2)
• Start of a Tale (Old V3)
• LOVE V2
• LOVE V3
• The Finale

Mod Credits

• Keithenel_PitZ – Artist, Composer
• KuriToigca – Artist, Programmer
• Sodukoru – Artist, Composer
• Lotter – Background Artist
• DanielaVE – Character Designer
• MilkyyFnF – Charter

The game is free to play. If you enjoyed the mod, be sure to follow the creators on social media for updates and future projects.