How is the similarity between 'Romeo x Romeo' manga and its related adaptations?

It depends. Sometimes the adaptations are quite similar, but there can be minor differences.

The similarity varies. In some cases, the adaptations capture the core elements of the Castlevania manga well, but there could be changes in plot details or character development for the sake of the medium or audience.

It varies. Some adaptations stay quite close, while others may have significant differences.

Overall, there's a decent resemblance. The core elements of the Gamaran manga are present in the adaptations, but maybe with some tweaks for better visual or narrative presentation. Small changes in scenes or character developments can occur.

It's quite similar. The adaptations mostly stick to the key elements and storylines of the Ominiscienter manga.

It varies a lot. Sometimes the adaptations stick closely to the manga, but other times there are significant changes.

It varies a lot. Some adaptations stay very close to the manga, while others make significant changes.

Overall, the Gantz manga and its adaptations share a basic framework, but in terms of details and character development, there can be significant variations. The adaptations might make changes to fit the medium or for creative reasons.

I'm not sure. Maybe there's no direct connection. It could just be a random combination.

Overall, there's a decent resemblance. The manga's core elements are present in the adaptations, but there might be variations in the sequence of events or character development for creative purposes.