Somebody plays as Finn and somebody plays as BF. All you have to do is sing when you hear your character sing. Afterwards just play with your friends and have fun!
Finn: W A S D, 1, 2, 3, 4, for sword notes, q for glitch notes, and space to use Finn's sword. ============================================= BF: arrow keys, press the sword notes or else you will be lowered to 1hp, m to shoot Finn and regain health that has no cooldown, and k to do the peace sign.
