FNF Vs. Hayase Nagatoro is a fan-made mod of the popular rhythm game, Friday Night Funkin'. The mod introduces Hayase Nagatoro, a character from the manga series "Don't Toy With Me, Miss Nagatoro," as a new opponent in the game.
In the game, players take on the role of the game's protagonist, Boyfriend, as he battles against Nagatoro in a series of rhythmic musical battles. The battles are set to original music tracks, which add to the overall experience of the game.
The game's interface is similar to that of Friday Night Funkin', with colorful graphics and charming characters. The addition of Nagatoro as an opponent adds a new layer of challenge and excitement to the game, as players must learn to match her moves and keep up with the rhythm of the music.