Violent Cop

Just the way the Takeshi's character comes across?

I think he crosses the line from being a rogue cop who pushes the boat out to get results. He comes across as not being able to communicate well with any other characters in the film (much like De Niros sociopathic turn as Travis Bickle).

Something about his constant borrowing money with no intention of paying it back and seeming lack of fear almost makes him seem suicidal.

I think that and the general bleak tone of the film, the fact that there's something inherently depressive and explosively violent about Takeshi's character just reminded me of Taxi Driver.

Anyone else?