Gantz

Gantz

A pair of high school students, Kei Kurono and Masaru Kato, are hit by a subway train in an attempt to save the life of a drunk homeless man who had fallen onto the tracks. Following their deaths, Kurono and Kato find themselves transported to the interior of an unfurnished Tokyo apartment, where they meet Joichiro Nishi, a Gantz veteran, and other clueless participants. The pair soon realizes that they are not allowed to leave the apartment. At one end of the room there is a large black sphere known as "Gantz".

After some time in the room, the Gantz sphere opens up, revealing a bald naked man with a breathing mask and wires attached to his head, and various weapons for them to use. These include the custom fitting black suits which give them super-human strength, speed, stamina and damage resistance, a controller which acts as a radar and stealth unit, X-gun, X-Shotgun, Y-Gun. Later on the series the Gantz sword, Gantz Bike are made available as well as much more powerful weapons are awarded in the 100 point menu.