A one-of-a-kind story is there where Kei and his buddy Masaru die on a train. Then, they are brought back to life by a strange ball called Gantz. The story is about surviving, so they need to hunt and kill alien monsters just to keep living. In the first part, the story moves slowly. But in the second half it gets faster and more exciting. The anime has surprises and changes direction, while characters also improve. The story shows some grown-up themes in a doubtful way. The second part is really exciting, and the strange enemies get harder as the story goes on. The last enemy is the hardest and most exciting one. The show wants to give some thoughts about society, but sometimes there's extra stuff and the pace is slow.
The quality of the animation might not be very good, but it has a special style with cool camera shots and fun character moves. It has a feel of Western cartoons that makes the viewing better. It also uses unique angles and fast camera moves which make it a pleasure to watch. It has scenes that are not suitable for kids, but they help tell the story. They may be hard to watch at times because of strong visuals or topics, but those moments have a reason in how it presents its tale. Though at first it might be surprising, the daring choice of storytelling and effort to experiment with creativity are appreciated. Handling tough topics like sex abuse can be difficult, but the anime handles them in a way that adds to the story. Some scenes are added because they help tell the story, not for being scary or shocking.
Gantz might not be for everyone. Some people might not like it because they do not enjoy crude content. It may mostly appeal to teenagers who love that type of stuff. I thought the story was fun and believed it made watching anime worthwhile. Gantz improves as the show goes on, and it handles grown-up themes that make you think. If you're a mature person and can ignore some negative parts, then this is something everyone should watch.
