Revealing mistake: When Ami's chest is being drilled by the "drill-bra" at the end of the movie, you can see blood flowing from her chest, obviously because of the damage the drills are causing her. Yet, later, you can see absolutely no cuts or marks on her breasts or upper chest, where the drills were penetrating her skin. The skin is simply soaked with blood.
Question: I don't fully understand how Ryugi dies. He simply runs away after the gun ejects itself and is impaled by about a half-dozen rods. What happened and where did the rods come from? Are they the gun-barrels?