Daikatana

In the year 2455 AD, swordmaster Hiro Miyamoto is visited by a man named Dr. Toshiro Ebihara, a descendant of Inshiro who is suffering from a plague and about to die. Toshiro tells Hiro that Kage Mishima, the ruler of the planet, took over the world by stealing the Daikatana and using it to alter history. Mikiko Ebihara, Toshiro's daughter, has been captured when trying to steal back the Daikatana, and Hiro must rescue her and fix history. (wiki)