The easiest way to understand BLOOD OF SAIYANS is to collect by Character, transformation, or visual grouping. The series has covered multiple Dragon Ball eras and Saiyan forms, so exact height, pose, costume, and finish details should stay attached to individual releases rather than being treated as universal specifications.
Metallic paint is one of the line's recurring signatures, particularly when emphasizing transformed Saiyan hair. Some releases also form coordinated displays based on memorable Dragon Ball artwork or group moments, which makes checking neighboring releases worthwhile before deciding a figure is strictly a solo piece.
Numbered specials, transformations, and re-releases remain part of the BLOOD OF SAIYANS family. They do not need separate Product Lines simply because somebody yelled “SPECIAL” on the box.