A bt, or beached thing, is a terrifying spectral entity in death stranding. born from the souls of the deceased trapped between worlds, these invisible phantoms hover in rainy timefall zones. they are physically anchored to the afterlife by long, dark umbilical cords. though invisible to the naked eye, they leave muddy, dark footprints as they hunt. they detect the living solely through sound and breathing. if you are caught, a pool of black tar erupts, dragging you toward a massive, monstrous beast that can trigger a catastrophic, colossal explosion known as a voidout. keep silent and hold your breath.