I recently went into this blind and not knowing anything about Gantz as a series. But I really enjoyed the fuck out of it. For a 3D animation, some of the scenes were done extremely well, almost to the point where I thought I was watching a live action at times. It was very real. It got me into reading a bit of the manga. How well do the other Gantz movies hold up? Are they worth seeing?
Just read the manga.
>>160261769
If that movie covered the Kansai arc, that was probably one of the highest points in the series. You can stop right there.
>>160261835
Don't listen to this anon. It's a train wreck.