The Japanese used no Airborne troops in China during World War II. They only had three battalions of para-marines that were used in Indochina (Southeast Asia, Viet Nam, Cambodia, etc.) on a very limited basis as airborne troops; but did participate in several landings.
When lying in bed, you can see that Col. Yasuda has two sets of upper teeth. The front, false set of teeth gives him a bucktooth look, which at the time, was the stereotypical cartoonish image of Japanese soldiers projected by American propaganda.