A free app for Android, by BMR INC.

What’s up with Friday Night Funkin? It’s a very exciting rhythm game where you can play with various mod enemies. You’re the Boyfriend, Girlfriend, Daddy Dearest, Mommy Nearest, Monster, and Spirit. You will also have some guest characters like Tankman, Whitty, Skid, Pump, and Pico. You have to defeat all of those enemies to unlock all the songs in the game. Besides, you can also fight with other players. 

You will be the one who will be fighting with all of the other players in the game. You can also play as a guest character in the game. In addition, you can also fight with other players.