Nina Williams, the mysterious assassin introduced in Namco's popular Tekken series of 3D fighting games, strikes out on her own in this action-oriented adventure. The beautiful and deadly heroine has been hired to hunt down and recover a stolen experimental weapon that could cause unspeakable damage in the wrong hands. To accomplish the task, Nina must infiltrate a dangerous underworld of international criminals. Stealth tactics provide an opportunity to explore levels, gather information, slay guards without drawing attention, and escape unharmed. The assassin will find plenty of opportunities to put her well-practiced fighting skills to use as well, however, and the game offers a new double-analog-stick-based system designed to allow easy, acrobatic melee attacks against foes in any direction. When unarmed combat is not the best solution, Nina can pull out her tonfa or katana and make quick work of the bad guys, or she can make use of a wide selection of guns and other ranged weapons.