Spectrogram - A 'FNF.EXE' concept

"Boyfriend has run into an evil counterpart of himself, Frenemy, it is your mission to defeat him in a rap battle to put him in his place!" -What the description on the (now deleted) Gamebanana page about the mod said.

Spectrogram follows the same idea as Euler or X but within the universe of Friday Night Funkin', being an opponent to face in a weird mod called Vs. Frenemy