Noodlefly

Noodleflies (sometimes referred to as 'needleflies ') are neutral creatures in Rain World who are always seen with their smaller, infant counterparts. They have four wings, a long body, and a retractable needle which they use to fend off predators and other noodleflies. Their legs are vestigial and use their wings for movement alone except when slithering through pipes.

Appearance
Noodleflies come in shades of red and the less commonly black, with the strip in the middle of their bodies usually being a lighter shade of the rest of their body. Sometimes they'll have a different color than a lighter shade of their body color. Very occasionally, an albino noodlefly can appear.

Behaviour
Noodleflies will explore the land with their offspring following close to the parent almost at all times and watch passing creatures like slugcats curiously. It isn't uncommon to see a baby noodlefly holding onto their parent's tail while they fly around. However, if even just one of the babies is killed, the parent will seek to avenge their baby relentlessly and will follow the killer non-stop until the cycle ends, or either the parent noodlefly or the predator is dead. They will also try to kill other noodleflies on sight without hesitation. They will also aggro on things that are holding noodlefly eggs until they drop the egg.

Noodlefly Babies and Eggs
Much smaller versions of noodleflies will usually come in trios following adults around for protection never straying too far from their parent. The hanging red eggs that can be found in a few regions as red can be hatched if hibernated with producing a pair of noodlefly babies in the process. They will usually fly away from the slugcat when the shelter opens as soon as they get the chance. They will rarely follow the slugcat that they have hatched with and follow them around for a long distance, even going through different regions to follow the slugcat. If you're lucky enough, they will hibernate with you. Currently, there is no consistent pattern to make a noodlefly baby follow you.

Combat
After a noodlefly has aggroed onto something, they usually will not stop trying to kill their target until it is dead or the noodlefly itself is dead. If they don't charge at their opponent, there is a chance that they will knock out temporarily with a poke. However, after charging they usually get stuck onto the ground and have to pull themselves out over a period of a few seconds leaving them very vulnerable to counter attacks. It only takes one spear to kill them, but they make up for their fragility with the ability to effectively dodge projectiles. They can be pretty tough enemies to kill so leaving them alone is recommended unless you are in a dire need of food or are looking for a quick and fun battle.

Regions
Noodleflies will appear in the regions: Farm Arrays, Sky Islands, Chimney Canopy, and Outskirts. They spawn most commonly when playing as red slugcat.