Biometal

Introduction
The Biometal System (also known as the R.O.C.K. [Rebirth Of Crystallised Knowledge] or M.E.G.A. [Mega-Encapsulated Granule Awareness] system), created by Ciel, is the process of storing the knowledge, personality and other data of a Reploid, some being more famous than others. The project was originally created to analyse the data of Dr. Weil (Dr. Vile), creating Biometal Model W. When this Biometal was removed from the lab (stolen by Serpent), 6 other Models were created. These include the legendary heroes X and Zero, as well as the four Guardians: Harpuia, Fefnir, Leviathan and Phantom. Anyone who uses the wisdom of a Biometal, takes on an 'living' armor representing the stored individual, and is regarded as a Mega Man (Rockman). The Biometal 'Models' that are collected in Mega Man ZX are X, Z, H, F, L, P and O. From a certain point in the game, Model X is combined with Model Z to form Model ZX, and is also distributed for combining with future acquired Biometals, namely Models H, F, L, P, and O. These models are later gained from battle. Model W is not acquirable by the player, and is used only by Serpent.

Model X

 * The essence of the legendary hero of Neo Arcadia, X.
 * Is used by Vent and Aile as Model X.
 * Weapon: X Buster

Model Z

 * The essence of the legendary Resistance hero Zero.
 * Is used as Model Z by Girouette
 * Model ZX by Vent and Aile.
 * Weapon: ZX Buster, ZX Saber

Model H

 * The essence of Sage Harpuia of Neo Arcadia
 * Is used as Model H by Hivolt the Raptoroid and Hurricaune the Wolveroid
 * Is used as Model HX by Vent and Aile
 * Offers power of Electricity and Wind
 * Weapon: Double Sabers
 * Abilities: Air Dash, Hover, Enemy Analysis

Model F

 * The essence of Fighting Fefnir of Neo Arcadia
 * Is used as Model F by Fistleo the Predatoroid and Flammole the Moleroid
 * Is used as Model FX by Vent and Aile
 * Offers power of Flame/Fire
 * Weapon: Knuckle Busters
 * Abilities: Megaton Crash, Buster Edit

Model L

 * The essence of Fairy Leviathan of Neo Arcadia
 * Is used as Model L by Lurerre the Abysroid and Leganchor the Gelroid
 * Is used as Model LX by Vent and Aile
 * Offers power of Ice and Water
 * Weapon: Halberd
 * Abilities: Swim, Water Dash, Item Scan

Model P

 * The essence of Umbra Phantom of Neo Arcadia
 * Is used as Model P by Purprill the Mandroid and Protectos the Goreroid
 * Is used as Model PX by Vent and Aile
 * Weapon: Throwing Dagers (Shurikens when charged)
 * Abilities: Hanging Edge, Night Scope, Radar Scope

Model O

 * A strange stone gained by secret means after beating the game
 * Contains the spirit of Omega, in the nostalgic form of Zero's original body.
 * Is used by Vent and Aile as Model OX

Model W

 * Was made from the remains of Dr. Weil (Dr. Vile) in the Ragnarok wreckage
 * Corrupts it's owner with power of grand magnitude
 * Is used only by Serpent.