"Oni tells the story of Konoko, a one-woman SWAT team whose approach to fighting crime is a devastating combination of rational calculation and fighting fury. Konoko is also a woman divided and haunted by shadows in her past– by oni, "ghosts" or "demons" in Japanese. Perhaps the most stylish of Bungie’s games so far, Oni takes place in a near-future 3D anime world which can be imagined as a blend of "La Femme Nikita," "Ghost in the Shell" and "Fists of Fury." Konoko's attire, attitude, and even fighting skills evolve as her world becomes ever darker and more dangerous.
Oni marks the first seamless unification of martial arts and gunplay into a new action hybrid, "full contact action." When your gun runs out of ammo, drop it and take out your opponents with flying kicks and neck-snapping throws. If you knock an opponent's gun out of his hand you can grab it and finish off a roomful of them in a blaze of fire. If the action gets too hairy, jump the railing to the floor below, kill the lights, prime a concussion grenade and dive outside through a plate glass window while the room explodes above you. Action fans will not be disappointed.
Complex technologies bring this world to stunning life. Radiosity lighting paints the setting with natural light. Interpolated animation mean that Konoko can sprint forward, tuck into a dive roll, and then pop up into a flying kick, all in one smooth, continuous movement, reacting instantaneously to your control.
All of this takes place in a multi-elevation 3D urban jungle designed by architects for maximum realism and consistency. With art drawn by anime specialists and code written by some of the brightest talents in 3D graphics, Oni is another Bungie game which will challenge players' conceptions of what's possible in a computer game. Oni is being developed simultaneously for Windows 95 and MacOS and is expected to ship in 1999."
Bungie's new web site has this information as well as images, facts about the game's engine, and other Oni stuff.