Does Gantz 0 follow the manga closely?

It depends. Some parts are quite similar, but there are also noticeable differences.

In general, the Gantz anime is quite loyal to the manga. Some minor adjustments are made for better visual presentation and narrative pacing, but the main plot and characters remain intact.

Yes, it does. The adaptation of Alita sticks pretty closely to the manga, maintaining the key plot points and character developments.

It follows to a considerable extent. But there are still some differences, especially in the details and pacing.

Yes, it does. Baki the anime mostly adheres to the manga without major deviations.

Definitely. Brotherhood is highly regarded for its faithfulness to the manga. It captures the essence, themes, and progression of the manga accurately. Minor differences exist, but they don't significantly impact the overall experience.

It follows quite closely. The anime of No.6 mostly adheres to the manga plot, with just a few minor differences that don't significantly change the main story.

Not really. There are quite a few differences between Excarina and the manga.

Baki 2018 mostly adheres to the manga. Though there are a few tweaks here and there, they don't deviate from the essence and key elements of the original manga.

Nana follows the manga quite closely. The story arcs and character traits are maintained, although there could be some slight differences in the presentation to suit the medium of animation or for creative purposes.