Romaji: Yakuman) is a Game Boy video game released exclusively in in Japan in 1989. It was one of the first ever Game Boy games to be released, and was later re-released as a Nintendo Power video game years later. The game is based off of Mahjong, and is named after what the winning hand in Mahjong is called. If a player found someone else who also had the game, then the two could connect and play multiplayer. If not, then the player could always play against the computer opponents. It was later part of the debuting games in the Japanese version of the Game Boy - Nintendo Switch Online component on February 8, 2023 (the North American version replaced it with Alone in the Dark: The New Nightmare).