Oni are an action game released in 2001 by Rockstar Games. The game was released for the Macintosh, PC (Windows) and PlayStation.
The game is set in 2032. The land has been polluted, which makes it uninhabitable. To resolve international economic crises, all nations merged into one entity, the World Coalition Government. In the game, we play the role of Konoko (later as Mai Hasegawa) working for the Technological Crimes Task Force (TCTF). She soon learns that employers have secrets from her past. Now, on his own, he is investigating to find out what the truth is and who he really is.