Source: Wikia. Pages: 55. Chapters: Akatsuki Espada, Arrancar, Basil Hawkins, ChikaTaki SoshiShihaiSagakuTensei, Darkos, The Pitch Black Titan Of Pure Darkness, Nelliel Tu Odelschwanck-Jaegerjaquez, Reid Allen Enfinger, Retsu Unohana, Taroimo Lasso-Freed, The Infinitely Old Man, The Omni-Berserker, Vizard. Excerpt: Few Hollows have the potential to remove their masks naturally, and even if they manage to do so, the change may not be significant. S suke Aizen is able to artificially create Arrancar with the H gyoku, which also unlocks much more of their potential than a natural transformation would. The process of turning a Hollow into an Arrancar is called Shinigamification. Arrancar and ordinary Hollows differ in several ways: Arrancar assume a humanoid body, as opposed to the animal-like or monstrous forms seen from Hollows. Upon becoming an Arrancar, the chances of a Hollow retaining a humanoid form increase with their intelligence; only Vasto Lorde-class Menos will definitely assume a humanoid form. This new form will retain remnants of their past selves, like fragments of their removed masks and a Hollow hole. While some Arrancar prefer to conceal these remnants (such as Nnoitra and Halibel), others (like Aaroniero) hide their faces completely to escape unwanted attention. Arrancar can gain a Zanpakut . Unlike with Shinigami, this Zanpakut is not sentient, but simply their "true" Hollow form sealed into a sword. Therefore, an Arrancar's release of their Zanpakut is merely a temporary restoration to their former selves, granting them any powers their Hollow form possesses. The act of release is called Resurreccion (Spanish for "resurrection"), which is activated with a command phrase followed by the name of the sword. The Resurreccion of Espada-level Arrancar releases enough power to be comparable to a Shinigami's Bankai. Few Arrancar do not have a Zanpakut, being too weak to seal their excess power into a blade, while others prefer to have it constantl...