Trololo said: Actually, since I don't know much of anything about Tohou, I don't, but I'm pretty sure I get the gist of it.
Hitbox = the little red-white square that denotes where an enemy shot has to land in order to kill you, becomes visible when you go into 'focus mode', which slows you down and changes your shot type, usually used when you need to be careful in avoiding enemy bullets.
Hakurouken = one of Youmu's swords, the shorter one IIRC.
Anyways, every time I see an image with a busty Sakuya where her chest is exposed, I always feel the urge to sing a PAD version of Pinocchio's "There are no strings on me". XP