Exploration is hampered by a bizarre camera angle that shows a great view of the floor and not much else. The low-detail locations look same-y, and identical characters seem to crop up all over the place. Only certain ones are crucial to the plot, and you won’t know who they are unless you’re a fan. Even then, you can’t just speak to them whenever you please. Instead, you’ll have to try both methods of getting a response - pressing A to have a chat or holding B to use a magnifying glass and then have a chat - before you’ll know if they’re currently active.
With some embarrassingly bad minigames thrown in, this one really is elementary.