Okay. So I'm playing with the mirror sheild in 179 on an old 1.90 quest that I just recently saved into the new beta format for somewhere to test and I come upon a screen with a Zora. Nothing unusual about that. So I use my mirror sheild to block the fireballs the Zora spits at me and instead of bouncing off at the same angle they hit they always aim straight for the Zora who shot it. I guess that's a feature of ZC so I can buy that too, that's fine with me. But what happens next is way out there. Before the fireball hits the Zora the Zora has submerged leaving only the little ripple where it was. And instead of going past the ripple spot the fireball stops dead in the center of the ripple. Then when the ripple dissappears and appears elsewhere the fireball immediately starts moving again, but this time it is going toward where the Zora just popped up. This bug is probably due to the fact that when a fireball bounces off of the Mirror Sheild it is aimed toward the nearest enemy or Zora. However it does not keep a straight course, and my best guess is that it doesn't stop aiming for the nearest Zora.
This was quite a humorous sight, and I suggest you all go try it before DN fixes this unusual bug.