Board Thread:Speculation House/@comment-14138255-20151129182644/@comment-25086632-20151130055347

Perhaps Neo's thing is throwing up spacially present images (sorta like really really weird holograms)?

Emerald's thing being mimicking a person's appearance and voice would be interesting.

My pet (horribly unlikely and rather implausible) theory is that Emerald can induce minor hallucination.

The mimicry definitely makes the most sense though.