I would change the Gantz anime ending, I mean the series was decent, no where near as good as the manga though, but the ending was simply terrible, it made no sense to just about everybody.
I don't know man, I did a search and saw that they may be making a second season. Only a rumor, when I get off from school I'll post the link I found. It even had a couple screenshots but someone could have just put some of the manga images into photoshop and did them. It doesn't look like it to me though.
