Game publisher Genki has opened a teaser site for its upcoming Nintendo DS detective adventure game. Titled Tantei Kibukawa Ryosuke Jiken Dan (The Incident Files of Detective Ryosuke Kibukawa): The Masquerade Lullaby, the game is based on a popular series that Genki produces for mobile phones in Japan. [br][br]In Masquerade Lullaby, you take the role of shrewd detective Ryokuse Kibukawa. Together with his female assistant Izuna Sagishima and a game scriptwriter friend, you'll be solving a mystery that takes place in a port town in Japan. Further details on the game, including how it'll take advantage of the DS' various features, have not been disclosed yet. [br][br]As with most dialogue-heavy adventure games, the chances that Masquerade Lullaby will be released outside of Japan are slim