Secret Mahjong House Pictures
Enter the Mahjong House area of the 1-Player mode. Opt to play against either Maririn or Inajima Oryuu, and have more than zero points by the end of the match. At the match results screen press Up, Down, Left, Right, B. The default message of the opponent will change and the face animation of the character will stop. Now, press any button to advance to that girl's secret picture.