I happened to get the chance to sit down and watch both parts I and II of the "Prison On Fire" movies; one after another. I thoroughly enjoyed the first movie, so I was looking forward to binging part II immediately after.
While "Prison On Fire II" (aka "Gam yuk fung wan II: To fan") was adequately enjoyable, it wasn't quite as good as the first movie. Why? Well, for my personal preference they had opted to put a bit too much of comedy into it, or at least elements of comedy. It just felt very much out of place, and it just dumbed down the movie unnecessarily.
It was nice, though, that both writer Yin Nam and director Ringo Lam returned to the helm the movie. Not to mention Chow Yun Fat retuning to his role, along with some other familiar faces in the inmate crowd.
"Prison On Fire II" is watchable and entertaining enough for what it turned out to be. But personally I was not a fan of the attempt to introduce elements of comedy into the movie, when they needed to make the movie more gritty and harsh.
My rating of this 1991 "Prison On Fire II" movie is a mediocre five out of ten stars.