Chow Yun Fat gives another energetic performance as Ching, a good-natured prisoner driven to the edge by a sadistic warden. The warden in this movie is more clearly a villain than in the first, since he enjoys pitting various prisoners against each other, as if for sport.
There is more emphasis on Ching's background than in the first movie, and more scenes take place outside of the prison. But despite the dramatic possibilities, one major flaw in the story line is that Ching never reaches an understanding with his wife.
But despite such a flaw, this movie is more about action, even more than the first, so it's not a big deal. This movie (as well as Prison on Fire, Part I) effectively conveys the futile and oppressive life inside a prison, and you can't help but feel happy for anyone who survives it.