Mahjong The Mysterious World

Mahjong The Mysterious World (also known by its Japanese title, Mahjong Sekai no Shinpi) is a Japanese arcade game released in January 1994 by the developer and publisher Dynax. Categorised as a "medal game" or video mahjong game, it was designed for single-player cabinet setups common in Japanese amusement arcades.

The title follows traditional Japanese Mahjong rules but infuses arcade-style mechanics, which was a staple of Dynax’s adult-orientated puzzle line-up during the 1990s.

The game contains hidden uncensored graphics ("Gal Mode"). Operators or enthusiasts using MAME can access this by entering the machine's Test Mode, navigating to Option, and selecting Gal Mode Check.