Board Thread:Episode Discussion/@comment-410526-20160102160723/@comment-4010415-20160102194108

XDex wrote: Hmm, I didn't associate that with Emerald when I watched it, I thought it seemed like a result of the power transfer. But yours sounds more likely, so good point. I do think knowing there is an illusion is a part of seeing through it, like when Cinder/Em/Merc were flickering to Amber. She knew they were there, and was able to partially overcome it. Cinder's face being blurry was definitely a hallucination produced by Emerald. We heard Emerald's Semblance activation noise right before we were shown Cinder's face being all squiggly. That's how you know.

That's also how a lot of people knew Fake Yatsu and "Mercury attacking Yang" were not Neo's doing.

Neo - Whistle, then exhale

Emerald - Whatever the hell that noise was. Kinda like scraping metal, I guess?