The Japanese cut of the film, footage-wise, is virtually identical to the Hong Kong cut, albeit the American scenes maintain their English dialogue while the Hong Kong scenes are in Cantonese. The biggest difference is that the Japanese cut is the only version to contain an end credits outtakes montage. This version has been available on laserdisc as well as a 2014 Japanese "Extreme Edition" blu-ray.
Dissatisfied and immensely disappointed with the American version, Jackie Chan went back and reshot and added new sections of the film for the Hong Kong version, including the addition of a whole new subplot.
All of the nudity is removed from Hong Kong version.