I found some samples of some Filipino Japanese Occupation Money in an antique store. It's interesting how the style mimics the US Dollar of the times. After the Japanese took over the Philippines in 1941, they brought hundreds of propaganda experts to "asianize" the population through theater, movies, radio and newspapers. The picture on the right hand side of the note is of the monument to Jose Rizal, a Pinoy patriot. The idea was that the Filipinos would reject western influence and embrace "The Greater East Asia Co-Prosperity Sphere." In other words, the United States of Japan, which included every Asian country from China in the north to Indonesia in the south, and ALL of the countries in between.
As inflation grew worse during the war years, the Japanese simply printed more money when they needed it. It became utterly worthless, yet they forced it on the populance. The Filipinos refered to these banknotes as "Mickey Mouse Money."