Board Thread:Theories and Speculation/@comment-2165692-20170426120148/@comment-734582-20170427151242

Hatake.Kakashi1207 wrote: Apart of what everyone has written.. why does it look like a mixture of various tailed beasts tht were there in NS because if u notice It looks like a mixture of Biju because biju themselves are mixtures of animals. The creature Boruto summoned was already likened to a Nue, which itself is a mixture of animals.

SamBamJellyJam wrote: Are we all forgetting that we already saw the animal he summoned in the previous episode? There was a quick cut to red glowing eyes in one of the previous episodes. The same ones we see right before Boruto summoned the creature. Either those eyes were the creatures or the eyes of someone who somehow made Boruto summon it. Nope, it was already pointed out that we saw the creature before.

The glows are the creature's own eyes. It simply has a snake (or snake-like) tail.