OK, folks, here are the 3 films: 'Watari the Conqueror', 'Watari and the Fantasticks', and 'Ninjascope - The Magic World of Ninjas'. They are all 1960's Japanese (Toho-Toei) flix, basically made for kids (so don't take it seriously) abut ninja, giant monster, flying saucers, magic, etc. Amazing that I never saw these as a kid, not sure I even knew about them! What a treat! All dubbed, btw.
What a hoot! If you like cheesy costumes, cheesy dialog/subtitles, cheesy special effects, cheesy plots and other cheesythings in general, you'll like this collection. I did. Japanese Cheese to the max!