On the plus side, there are many solid fights that are all fists and feet, with only occasional wire-assisted leaping of tall buildings in a single bound. Oops. Mixed my genres there. The cast is full of players who look, act and handle themselves in combat suitably for their roles.
The plot is fuzzed by one dude hanging around the margins of the action, periodically helping the three protagonists from the shadows for reasons that I missed, or no one bothered to explain in the script.
The second flaw is that hypnotic kung fu gimmick that's so absurd it belongs in a spoof, not a "serious" crime story. We've seen flying guillotines and other fanciful weapons, but this pitch requires a ridiculously long windup just to result in a silly execution.
Finally, there's nothing heroic about three leads having to gang up on the villain for the climactic fight, especially after one of them almost beat the guy by himself earlier in the movie.
Really lame ending for what had been a generally adequate offering from the era.