From January 7 until January 31, the Emperor's formal appellation was "Departed Emperor." His definitive posthumous name, Shōwa Tennō, was determined on January 13 and formally released on January 31 by Toshiki Kaifu, the prime minister.
On February 24, Emperor Hirohito's state funeral was held, and unlike that of his predecessor, it was formal but not conducted in a strictly Shinto manner. A large number of world leaders attended the funeral. Emperor Hirohito is buried in the Musashi Imperial Graveyard in Hachiōji, alongside Emperor Taishō, his father.
Nintendo released the Game Boy in Japan on 21 April 1989, and in North America on 31 July 1989. Nintendo of America president Minoru Arakawa managed a deal to bundle the popular third-party game Tetris along with the Game Boy, and the pair launched as an instant success.