There are numerous video games based on the YuYu Hakusho manga and anime series created by Yoshihiro Togashi. The Japanese name of the series is romanized as Yū Yū Hakusho and the anime is officially titled Yu Yu Hakusho in North America. The games primarily revolve around the protagonist Yusuke Urameshi, a delinquent junior high school student who is killed while trying to save a young boy from being hit by a car. Yusuke is brought back to life and is promptly given the task of solving cases involving ghosts and demons in the human world.
There are a total of twenty-one video games based solely on YuYu Hakusho, most of have only been released in Japan. When the anime series aired on TV Tokyo in the early 1990s, games were released on both home and handheld consoles. These include a group by Tomy on the Nintendo Game Boy, a group by Namco on the Super Famicom, releases on Sega consoles, and a few miscellaneous platform titles. In May 2003, following the show's western debut, Atari acquired the rights to distribute new YuYu Hakusho games in North America and PAL regions. The company published three games exclusive to those locations. More Japan-exclusive games have since been released by Banpresto and Takara Tomy. Games in the series are of several different genres, though many are action or fighting-themed in relation to the manga's story arcs.
Source: Wikipedia, "Yu Yu Hakusho Forever", available under the CC-BY-SA License.