Just a frog named Soup exploring the crystal caves, collecting samples. What do you mean, ghosts? No, no - I'm a scientist. No ghosts here, nope. Just science as far as the eye can see. Yep.
* Sighs contentedly before gently brushing off another rock for the collection *
* Behind Soup, two ghosts shrug ephemerally as if to say "Welp, nothing we can do about it. If the frog can't see us, best move on." before slowly disappearing into the mist once more *