https://www.polygon.com/2018/3/7/17092424/monster-hunter-world-wiggler-head-alpha-event

Monster Hunter: World’s current limited-time event has an appropriate name, even if it’s also a painful pun: “Wiggle Me This,” a wiggler-centric quest that runs through March 9. The goal is to collect 10 of the spineless creatures, so that you can get the material to craft the Wiggler Head Alpha armor. But despite this bendy, oversized helmet’s extreme creepiness factor, hunters are obsessed with it — which is leading to some amusing (or terrifying) sights.

“Wiggle Me This” kicked off on March 2, and players have been quickly completing the quest so they can make that creature-inspired helmet. It’s a tall, jiggly thing that completely covers characters from the neck up, and a bug-eyed wiggler head sticks out at the very top. Basically, the Wiggler Head Alpha makes everyone who wears it look like they’ve mutated into half-human, half-creature.