This is a mod for the game FNF, in which you have to fight a musical fight against the creepy version of Sonic. The main song will be a remix of “Hill of Void”, which was previously played in the mod named Sonic.exe. You have to quickly press the keys with arrows on your keyboard as they appear on the display to keep up with the music and beat of the game. If you make many mistakes, you lose and the game restarts from the beginning. Be fast and careful, sometimes it is really hard to win.