Nihon Pro Mahjong Renmei Kounin: Tetsuman is Naxat's first mahjong game for handhelds equipped with the latest and most powerful thinking routine that has ever appeared in WonderSwan.

This is a full-fledged game that includes the data of 10 professional players, headed by Chairman Mataro Sakai and Takeo Kojima. Also included is an open replay function that allows you to study your opponent's moves. It's a great way to study the moves of professional players.

The game also supports communication battles. If you have friends who have the same software, you can enjoy a communication battle with just one communication cable.