Continuity mistake: When Cynthia Rothrock acts as a bait for the maniac at the beginning of the movie, she is walking down the nice and brightly lit slums in black high heels. A fight ensues, and she kicks him around wearing black sneakers (after her triple roundhouse she strikes a pose in a wide shot and it's very noticeable). Her incompetent partner joins in late, and she walks out on him wearing high heels again. (00:01:55)
Other mistake: The sword champion is murdered in a dark room. Cut to Tarek Richards by his corpse. The room is still shrouded in darkness, which makes for a cool transition. However, when the camera pans out and someone (with an audible click) turns on the lights, you realise that the room is full of cops which up to that moment have been working in a dark room for no reason - and they have been doing things that require reading and writing, like collecting witness statements.