Der Schlaghammer aus Shanghai
Kung Fu: The Invisible Fist (original)
Starring Chan Sing, Yasuaki Kurata, Wong Yuen-San, Gai Yuen, Michael Chan
It's a action & adventure and action movie, and has a rating of 6.1 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Germany.