Plot hole: When Ching and Jen Moo are confronted by the God Skills Society at the Sun Family Temple, there are three disciples appearing behind the master. But only two of then (the long-haired man, and then the monk) are seen entering the fight; the third one suddenly appears as a yellow-clad corpse at the entrance stairs as Ching fights the long-haired man.
Ninja In The Dragon's Den (1982)
1 plot hole
Directed by: Corey Yuen
Starring: Hiroyuki Sanada, Jeong-lee Hwang, Conan Lee, Po Tai
Revealing mistake: When Fukuda/Uncle Foo unearths his ninja weapons cache, he pulls his katana half out of its sheath. you can easily see the glass panel sliding with the handguard to make the blade gleam in the light.
Trivia: When Chee nearly falls off the temple pagoda on his falling line, a melody is brought in which was used for certain action scenes in 'Raiders of The Lost Ark'.