Daddy Longlegs

Widely agreed on as the most dangerous and formidable enemy in Rain World, the Daddy Longlegs most often need to be outsmarted and outmaneuvered as opposed to outhunted.

Longlegs consist of a tumorous black core with a blue X over each growth and numerous black tendrils ending in a sticky blue tip, and carry themselves around and explore their environment using these sticky feet.

Behaviour and Tactics
Far more dangerous than their cousins, the Brother Longlegs, who hunt using touch alone, Daddy Longlegs are larger, faster, stronger, and with higher health than Brothers, along with an adept sense of hearing.

Because of this, even a short hop will cause them to investigate by sending 1-2 of their tendrils to feel around where they heard the noise. If they touch you or whatever creature they´re hunting, they will then either drop down on their prey and absorb it into their core or, if the prey is inside a crawlspace or a room that can only accessed by one, they will attempt to pull them out with their sticky tendrils. However, as long as you don´t touch the ground while climbing and crouch down while walking, they shouldn´t be able to actively find you.

Proto Longlegs
A variant of the Daddy Longlegs found only within Five Pebbles´ subregion Unfortunate Development, Proto Longlegs are immobile cysts with short tentacles that are attached to surfaces such as walls and ceilings. Despite not being able to hunt the player, they do possess the same hearing abilities as their mobile cousins, and any contact made with their tentacles or body is likely to be the player´s last. Simply avoiding Proto Longlegs is enough to survive travelling through clusters of them, but compensating for their tentacles is more difficult

Lore
The Daddy Longlegs are some of the most lore-heavy creatures in the game, unlike most of the beings found in Rain World. The Daddy Longlegs were the result of a particularly dangerous experiment by Iterator Five Pebbles trying to create an organism that would destroy the taboo placed on iterators to keep them from ending their own lives. While managing the experiment he began using 4 times as much water than normal and drained his group senior, the Iterator Looks to the Moon, of water, which began to damage her systems. Cycles went by, and Moon pleaded with Five Pebbles to lower his water consumption. When he finally did after Moon used her seniority privilege to force him to, the organisms he was creating became destabilized and broke free, breeding uncontrollably and furiously eating away at his innards. As for Moon, it was too late, and her supports buckled beneath her and threw her into the sea that is Shoreline.