>>2636502I thought this as well. Maybe at first Pearl wouldn't have recognized her, but I don't see why she would then be making octo-jokes in their stage dialogues if she didn't at least know that much. It sounds more like Pearl just didn't know that Marina was part of a giant army that designed weapons of mass destruction.
(I can believe that the kids in Inkopolis probably have no clue what an Octoling is however and just think Marina is a weird cool Inkling)