The moment a Soul Reaper screams "Bankai" in the middle of a fight in Bleach, indicating that they're about to enter their final form, fans know that things are about to get real, especially when it's a captain or lieutenant. Because of how devastatingly powerful a Bankai tends to be, it means they are always a focal point of a scene and are usually accompanied by some badass music, a cool character pose, and the look of panic and fear on the opponent's face.