- Gantz has a rather bizarre storyline: Characters that appear to have died from one method or another appear moments later in a room with a giant black ball named (you guessed it!): Gantz. These characters have apparently been given a chance to live again by participating in a fight against a variety of supposed baddies from outer-space. The problem with the storyline being presented is that if these characters die while battling they die completely. No more second chances at living after losing all life during a Gantz battle! However, if you can beat a round (which usually lasts for twenty minutes for some whacked-out reason) you might be able to win some cool points that just might be redeemable for something pretty, well, nifty: a complete return to your normal life or a chance to bring back someone who has died.