Tiger Over Wall has several seriously flawed battle scenes where you can noticeably tell that actors are falling over before actually being "hit." Though I guess you shouldn't watch any karate movie with a sense of absolute reality, the poorly choreographed fight scenes do detract a lot from the viewing experience. Overall though, the movie is still good.
The plot is inane and I'll spare you the details. The dialogue is poor and the character's poorly developed. All in all you're supposed to feel sympathetic towards the Ko and hate the police chief (I forget his name). The entire movie is a built around the final fight scene between Ko and the chief... and this scene along saves the movie.
How does a movie with a nonsensical plot and bad fight scenes garner a 6 vote? Who knows... but it somehow does. A good film 70's martial arts film... but not a great one.