The best Bond films either have Bond fighting a megalomaniac or someone he has personal animosity with, like Scaramanga or Sanchez. Yaphet Kotto is a good actor who adds colour to the role, but the character of Dr Kananga just isn't very interesting and his plan isn't all that diabolical. I mean, it is, but it's not nuking China and the UK for television ratings, or wanting to destroy MI6 as a whole.