In Japan, the game was showcased at the Tokyo Game Show in September 2003, the first time that Square and Enix had appeared at the show as a single company. In the United States, the game was showcased at the Electronic Entertainment Expo of Los Angeles in May 2004, with the presence of Asano. For the North American version of the game, the developers made the difficulty level more challenging and aggressive. A novelization of the game was also written by Makoto Inoue on July 30, 2004, with Arakawa providing illustrations.