Farfarello

The Farfarello (lit. Slanderer, elf, goblin, or evil spirit) is an independently-improved species of the Hunter B.O.W.

Description
Farfarello were developed by the terrorist group Il Veltro by administering the t-Abyss virus to regular Hunters.

As a result of being administered the t-Abyss virus, the Farfarello came to have aquatic characteristics, such as the ability to mimic their surroundings and become transparent similar to a group of aquatic organisms. However, because they were exposed to multiple viruses (t-Virus and t-Abyss), it is believed that they became so aggressive that they were even more difficult to control than a regular Hunter.

They are stronger than regular Hunters and slightly larger. They can be rendered visible by scanning them with the Genesis or inflicting heavy damage. Their locations can also be compromised by a weapon's laser sight as the laser's point will become rounded when one has been moved over. Their footsteps kick up snow, which can also denote their position.

Trivia

 * The Farfarello is named after one of the 13 devils named the Malebranche (Evil Claws) from the Divine Comedy written by Dante Alighieri.
 * Quint referred to one of them as a "poltergeist" while witnessing it mauling a Veltro agent to death while camouflaged.
 * They bear strong similarities to the Novistadors from Resident Evil 4. They can turn invisible and also attack with flips and lunges, much like their insectoid predecessor.
 * When turned visible, its color is slightly purple and grey. While the original Hunter's color is greenish.
 * It can decapitate and instantly kill you in one hit even if its invisible.
 * Because t-Abyss virus is aquatic, Farfarello's invisiblity ability is probably from the marine animal group Cephalopods such as octopuses or squids, which are able to modify their skin pigmentations and colors to disappear into the background.