There is, indeed, no entrance like falling out of the sky, and just as Kylo is getting his bearings, yet another appeared out of thin air.

A large, round, white pig.

Or was it a cat?

Whatever it was, it was screaming in a nasally voice and its landing trajectory was somewhere in the vicinity of Kylo's head.

There are some things a helmet can protect against, but the bulk of Nyanko-sensei was not one of them.