Welcome to Kuroiwa's world
At the same time there are more typical Fukasaku effects all over the place. The fight scenes are done in his incomparable hand-held camera style, the violence of the camera's spasmodic movement accentuating the brawling, beating and shooting in each shot. Stills or screen captures can't really do justice to these scenes, which have the realistic effect of obscuring the action rather than choreographing them for maximum clarity. This particular film gets a little psychedelic, too, in illustrating the effects of truth serum on an already disoriented Kuroiwa.
The Japanese-language unsubtitled trailer is three minutes of mayhem and Meiko Kaji on smack, uploaded to YouTube by asianwack.