Ninja in the Dragon's Den
Two rival warriors, a Japanese and a Chinese, are forced to work together after their master has been killed by a mighty enemy.
Starring Conan Lee, Hiroyuki Sanada, Hwang Jang-Lee, Tai Bo, Hiroshi Tanaka, Kwon Yeong-Moon, Ma Chin-Ku, Tien Feng, Kaname Tsushima, Wu Chia-Hsiang
Watch "Ninja in the Dragon's Den" on Amazon released in 1982. It's a comedy and action & adventure movie, and has a rating of 7.2 out of 10 from Imdb which is usually fine for this kind of movie, and is currently only available for purchase or rent.