Secret Ninja, Roaring Tiger (1982)

Original title: 인자문살수

The 200 year old sect of silent assassins - this time they've gone too far...

Dragon Kong, a victor of a millionaire's martial-arts contest, is about to begin the most dangerous mission of his life. For his prize, the millionaire's ravishing daughter Susan, has been stolen - kidnapped by a Ninja sect headed by Tiger So, a legendary Ninjitsu super-foot. Why Tiger has taken Susan, Dragon can only guess, but as the shocking truth begins to dawn, and the final showdown approaches, the violence of the Ninja reaches its fatal peak.