The home video-game industry began in 1972 with the founding of Atari. After riding a dramatic boom and bust in the early 1980s, most players left the business. Nintendo of Japan then rebuilt the industry--establishing a commanding worldwide position by the end of the decade. By 1990, Nintendo game systems could be found in one out of every three households--in both Japan and the United States. The company's stock market value exceeded that of Sony or Nissan. The case describes the steps Nintendo took to achieve this success. Also covers the U.S. antitrust investigation of Nintendo.