You have to be clear on what this is. This is an extract of a particular story arc of a long running manga featuring vivid violence and mayhem. This is not a complete story, You will not have a complete picture of what is going on and you will probably end up with more questions than answers. But if you take this movie as that, as part of a whole story and accepts its shortcomings, you will not regret it. It is a very engrossing and entertaining movie with non-stopping action scenes that will not let you down. Probably one of the best manga adaptations out there. The violence, the technology, the acting, everything fits nicely on what the manga wanted to show. Just accept what is going on the screen and prepare for a visual feast.
Review of Gantz: O
