Gantz tells the story of Kei Kurono and his friend Masaru Kato who die in a train accident and become part of a semi-posthumous "game" in which they and several other recently deceased people are forced to hunt down and kill aliens armed with a handful of futuristic items of equipment and weaponry.
GANTZ is brutal and down to Earth, but has the most interesting sci-fi elements you will find in an anime. The story is amazing with plenty of heart-pounding fight scenes, the characters are unique and offer insight into the world of GANTZ, all the while struggling to survive. The Show is gory, but the gun fights are amazing,the weaponry and the suits are epic beyond reason and there are those moments that are so cool they make you break a sweat. The first thing you'll notice is how arrogant some of the characters are, but fret not their confidence soon gets torn away, mainly because the story is that of survival and living life. Honestly this anime is perfect and i wish they would have continued along with the manga. In summary GANTZ is the best, most brutal, thrilling and exciting show you will ever watch, watch and enjoy!