Missing text?
When the player is facing lava (for example near the Fiery Crypt on Route 9), by pressing A, the usual sound of dialogue boxes is played but no text is displayed. This seems all the more strange because the water tiles, very similar to lava tiles, have their own text.
PS: Moreover, about water tiles, one of the texts associated with them does not seem appropriate to me. Indeed, when looking at some water tiles, the message "the sea is calm today" is displayed. However, when you look at the small ponds on Route 6, the text is the same, although the player looks at a pond and not the sea!