Oni is a third-person action video game developed by Bungie West, a division of Bungie. It was originally released by Gathering of Developers for Microsoft Windows and Mac OS in 2001; a PlayStation 2 port developed by Rockstar Canada was released the same year. It was Bungie West's only game. Gameplay consists of third-person shooting with hand-to-hand combat, with a focus on the latter. The game's style was largely inspired by Ghost in the Shell and Akira and shares the same genre, being set in a cyberpunk world.