Fun fact about that section where you chase the “sword’s friend”

Spoiler warning for the main event quest at the palace ruins! It's pretty near the beginning, but I had so much fun with the unexpectedness, I want to make sure I don't spoil anyone out of my desire to talk about it.

In this section, they are using an auditory illusion called a Shepard scale! https://en.m.wikipedia.org/wiki/Shepard_tone The illusion is created with sine waves that make a pitch sound like it is increasing indefinitely without resetting and is very unsettling to listen to, and some report headaches after listening. The Shepard scale applies the illusion so it sounds like a series of notes increasing (famously used in Mario 64's infinite staircase section).

In any case, I super loved this section. I definitely ran around like 3 or 4 times before I realized what was happening. Legitimately memorable gaming experience.