Bluto, from the Popeye cartoons being produced in America at the time, makes an appearance in this film as a stereotypical drunk. This is one of few examples of the Axis nations using American cartoon characters to portray the United States in animated films, just as the Allied forces used Hitler, Mussolini, and Hirohito, as well as Nazis and Japanese soldiers in their propaganda films.
Considered by scholars to be Japan's first full length anime feature film.
Was created as war-time propaganda to promote the Japanese cause for WWII. The film combined animated characters from the famous folklore Momotaro and real footage from the attack of Pearl Harbor.