Jade Dagger Ninja (1982)
A brilliant, very strange, and very bad Asian horror/martial arts film featuring a truly odd climax death-attack scene which will leave you speechless... or mindless, it depends on your willpower. The movie begins, immediately thrusts you into conflict that you don't understand, and before you know it, green-faced monsters with big hair are doing superhuman things. A bewildering journey into low-budget fantasy ancient China. Definitely one of the oddest films of its kind that I've seen.
Reason 1: Perfectly bad awesome dubbing
Reason 2: What the hell is a green-faced, white-haired demon?? Reference my account's icon -- it comes from this movie.
Reason 3: Most insane finishing-move at the end.