So, it's a Moriya Shrine conspiracy.

That is quite the coalition just to make one fairy potentially piddle herself with fear.

I think the Alien Queen costume was in some ways less complicated. XD (It took over a dozen people and a crane to make it move realistically, but it only had 2 people inside it.)

Poor Cirno, she experiences what a lot of kids have experienced years ago.

That's a pretty clever use of items, particularly Pyonta's eyes, Momiji's shield and Nitori's xboxhueg backpack. Great pic of the whole Youkai Mountain crew.