Roppongi can be an awesome place man, you have got to watch out for them damn Nigerians. They're aggressive as fcuk out there! They try to strong arm you into their club. I tell them, nah breh back the hell off. They'll get the message. On top of that, you got Chinese and Filipina women trying to get you to go their massage place. Gotta do the same thing and be stern with them. Roppongi is the one place in Japan where you don't want be drunk at as you can easily get taken advantage of. The best place In my opinion to go in Roppongi is Roppongi Hills. Pretty awesome atmosphere with a nice bar setting and several good restaurants. There is also an international karaoke bar there called Fiesta. Really cool place if you're in to karaoke. Overall, Roppongi isn't bad at all, you just have to be aware of your surroundings and not be drunk out there, otherwise you'll possibly be in for a bad night.