Jakihazars

Jakihazars are some sort of microbe that was brought from the Hole soon after Hole Colonization happened. It is thought that they were members of a cosmos that was eaten by the Hole Monster long ago, and were able to survive verse digestion by hijacking newer arrivals' verse-crossing machines.

Jakihazars hijack mechanical methods of exiting local universes, multiverses, and lands in the hierarchy below cosmos (sometimes including cosmoses themselves). This means that whenever a being uses a machine to go to cross verse borders, they are at risk of being hijacked by Jakihazars and instead transported to the nearest Jakihazaria. Many creatures are able to survive Jakihazaria without any problems and get back on their way, but the weaker ones are destroyed and reconstructed into more Jakihazars.

Jakihazars cannot cross verse borders on their own, they must use carriers to cross for them. This means that the Jakihazars originated outside of a Jakihazaria, and create them using machines that they hijack as their hosts. It also means that any verse crossing vessel must be checked for Jakihazars if it could've been in contact, or it could bring them to a place they haven't been before.