Continue game play:
Enter CNT as initials on the high score screen. Game play will
continue from level 7, if the last point played was at levels 7
through 12. Game play will continue from level 13 if the last
point played was equal to or greater level 13.
Hidden options:
Enter _MD on high score screen, where "_" indicates a space.
Game setup options will appear on the title screen.
Note: Enter MD_ for the Japanese version of the game.