FNF vs Chara the Monster Boy

Game description:

So, you know that the creators of Friday Night Funkin’ universe love to fool around with different character skins. In the new mod called FNF vs Chara the Monster boy, every personage is some kind of monster. Yes, your protagonist, Boyfriend, and the Girlfriend, and, naturally, his adversary, are monstrous creations with creepy mimics. The battle is set in a scary dark place. You will have to sing one difficult and long song to win and get out of this freaky place. You may not be able to win on the first try, but once you train a bit, everything is possible!