Taitei no Ken: or, Nyah Nyah ninjas, Androgynous Bishounen, and My, that's a Giant Sword you have.
Otherwise known as The Sword of Alexander.
It's hard to categorize just exactly what this film is: straight up parody of fantasy/sci-fi epics meets the awesomely bad costumed shenanigans of Mighty Morphin Power Rangers, or satire of historical sagas with a mythological twist...as if Shinobi met Monty Python in a bar, proceeded to get drunk, catch a Godzilla flick, and then had a baby with omniscent voice-over powers. Maybe that's what this film is.
All I know was is that it was so bad it was
fantastic, and worthy of Mystery Science 3000 commentary.
The basic gist of the plot is that there is a Chosen one to wield three mystical tools of power, and that these tools of power happened to conveniently touch down in Japan, and oh, there are aliens in spaceships who are looking for these tools as well.
( you know you want to watch this movie. )