The purpose of this study is to examine how the firm without fundamental technology is to gain the competitive advantage. This study examines the case study of Nintendo in the home game machine industry. This paper points out that the firm gains two advantages, economic advantage and organizational advantage. The economic advantage means that the firm can choose either an advanced or a cheap device out of several device makers, and change the alternatives cheaply and quickly. Moreover, the organizational advantage means that the firm without fundamental technology is not restricted by organizational inertia and cognitive restraint, and exercises the characteristic strength.