Water Release: Sea Urchin Surge

A technique where the user uses water-natured chakra to temporarily enhance their head's metabolism and manipulate the hair into the form of long, thin spikes that they then cause to "surge" outwards from their body.

Trivia:

 * This technique was developed by Hanegakure in an attempt to recreate Fuguki Sukaizan's "Needle Senbon" technique.