Creolization is a concept for a form of cultural reception in which superficial elements of a certain culture are borrowed and used apart from the original context. This concept originally came from the research of Caribbean languages transformed by the contact with the European languages, but is now applied to many cultural phenomenon occurring in the globalization. The Japanese culture which expanded its influence rapidly in these ten or fifteen years has also experienced such creolization in many countries. In this paper is analyzed such a creolization of the Japanese cultural elements, especially in the case of Ninja and Samurai in American comics.