Gambler Jiko Chuushinha: Katayama Masayuki no Mahjong Doujou (ぎゅわんぶらあ自己中心派 片山まさゆきの麻雀道場) is a 1990 mahjong game by Game Arts for the Sega Mega Drive made with the video game license to Kodansha's Gambler Jiko Chuushinha manga — one of many such games by Game Arts.