Ninja In The Dragon's Den (1982)

Continuity mistake: When Jen Moo ambushes Fukoda in his house, he kicks part of the waterwheel's gear against him, jamming it solid and pushing him through the wheel into the river. But in subsequent scenes, the wheel turns again, and it is completely undamaged.

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'.