Kaguya Skip
Note: This page describes a glitch, trick, or exploit. To see others, click here.
Explanation
Early in the Imperial Palace dungeon, you go past Kaguya's prison cell on the way to get the Lockjaw key and she turns to speak to you. By performing a jump with gold dash across the poison water, you can skip this initial dialog trigger.
On the way back, it is possible to perform a similar jump in reverse, though it is extremely precise. It can be made easier with the use of Issun x1000 Key Push, though setting this up quickly enough to save time is difficult. The more common technique is to simply double jump towards the large rock, causing Ammy to hit the first dialog trigger (which wasn't cleared), be warped up onto the rock, and immediately activate the second dialog trigger. Both dialogs can be skipped quickly by mashing the skip button.
Demonstration: https://youtu.be/KKcyURIAb04?t=5246
Returning with the lockjaw key using Issun x1000 Key Push: https://twitter.com/RiftyRTA/status/1643072548165361671 (mirror)