User blog comment:Plexioth- xD/Monster Hunter 3 Ultimate/@comment-2049092-20111031014116/@comment-85.136.52.107-20111101181405

i think they might use the same masks (excepting their default mask of course) so you can use two of them at the same time. for example: chacha wearing the lamp mask and kayanba wearing the underwater mask so you can face both cave and sea monsters in the same mission (this situation is completely fictional).