Not because of the gunfire, there's guns, but blood is seen, bloody scenes may disturb some viewers.

Deaths are visible in helicopters or other police cars, it's like Ghost in the Shell, but not like a cyberpunk show, even though it's have police officers, and also guards, doesn't mean it's like Stand Alone Complex, it's like a Cyberpunk Anime, but with no adult content, just a little bit of adult content, but blood is seen with swords and other weapons, and people die.

English Dub : Damn, Crap, Hunch, Dammit, Hell.