Hermit Crabs are enemies found in the Tide Pool and Abzu, that are able to hide underneath certain objects.
Behavior
They are similar to the Snails of Spelunky HD in terms of behavior, but with one main difference; they are able to hide in things of various kinds, but usually under push blocks. They can also be found under Chests, Crates, and rarely explosive Powder Boxes. They are also able to climb on the climbable dragon poles in the Tide Pool, and will spit poisonous bubbles which do no damage[Needs Research] but will poison the player. The bubbles float upwards until destroyed by popping on a tile, being whipped or touching pretty much anything.
They are one of the only monsters that are able to be sacrificed to Kali, but award no favor whatsoever.
Strategy
Caution is advised when dealing with hermit crab, as poison is an incredibly dangerous status condition. They shoot their bubbles to the side before they rise upwards, so they are vulnerable from above. Unfortunately, they sometimes spawn in tight corridors, with no way to get above them. In this case, it is best to whip them when they come out to attack, but before they start spitting bubbles. This can be tricky, and should never be attempted when they are hiding under a powder box, as while that will kill the hermit crab, you will likely also be obliterated along with it.