What is the minimum requirement for a successful manga adaptation like Manga Rock?

It really depends on the specific manga. Some might be considered complete with just a few chapters, while others need a lot more.

The adaptation is decent. It keeps some key elements from the original Su Ken Rock manga, but there are also noticeable differences.

The adaptation on Manga Rock is decent. It manages to capture the main plot points and character developments from the original manga.

It's decent. The adaptation in Manga Rock does a fair job of presenting the story from the Eyeshield manga, but there are a few noticeable differences.

The adaptation of Manga Rock can be quite good. It manages to capture the key elements of the original manga.

It's decent. The adaptation in Manga Rock keeps the key elements of the Emma manga but might have some minor changes.

The Trigun manga adaptation in Manga Rock is mostly faithful. It manages to convey the essence and excitement of the original manga. Though there could be a few tweaks here and there to suit the digital format, it doesn't stray too far from the source.

It's decent. Manga Rock's adaptation of Alita manga maintains the key elements but might have some minor differences.

The adaptation of Saiyuki manga in Manga Rock is quite good. It manages to convey the main plot and characters effectively. But as with any adaptation, there are always some subjective opinions on how well it matches the original manga.

It's decent. The adaptation in Manga Rock maintains the key elements of the 'Arifureta' manga, but there are some differences.