Model A

Model Albert - 'The Copy Mega Man'

History
Model A gets its name from Master Albert, who created Model A as his personal back-up system. By defeating powerful enemies, Model A absorbs the DNA Core into its database, allowing the user to access the new form and its powers, albeit at a somewhat limited scale. The DS touchscreen allows for instant transformations without the need to scroll through forms first by simply touching the icons. Though the design of the biometal is heavily based on Axl, a character from the Mega Man X series, the in-story explanation is that it is a backup system for Albert as the Zero series does not acknowledge or allude Axl's existence at all. This is most likely because Mega Man Zero was released two years earlier than Mega Man X7, the game in which Axl made his debut. Also, Biometal Model A is the only Biometal who has different sprites for each main protagonists.

Power and Abilities
This Biometal's Mega Man form allows the use of twin hand cannons, as well as the A-Trans copy ability, in the use of DNA Cores. Unlike other Biometals, Model A's Weapon Energy is perpetual as it can continually regenerate over time without the need of Weapon Energy items.

Attacks available include the powerful Charge Shot, the before-mentioned A-Trans ability, and the Homing Shot. The homing shot is capable of targeting up to eight enemies over a reasonable range. However, unlike Vent and Aile, the hand cannon's shots differ greatly on who is using them; Grey can fire up to three shots and his Charged attack fires a plasma orb similar to that of Model X's first Fully Charged Shot; while Ashe can fire up to two larger and more powerful Laser Shots, and her Charged attack fires a thick, powerful laser beam with Gemini Laser properties. Grey's Homing Shots have a wider range and fires up to eight shots on screen, while Ashe's range is more narrow, but longer and fires a single energy torrent that travels from target to target. Model A can also perform the Giga Crush technique, flinging out both pistols in a flurry of bullet fire.

Because of Model A's status as a backup system for Master Albert, it also possessed five ciphers, which would activate after dealing battle with Mega Men and absorbing their DNA cores and reveal data on Master Albert's plans to the biomatch for Model A, a process that's also extremely painful. It's also implied that any Mega Men who fail to retreat prior to the Model A Mega Man absorbing the DNA core of the defeated Mega Men are also exposed to to the information as well, as evidenced by Model ZX being exposed to the details of the final cipher regarding the cumulation of Albert's final plans.

A-Trans Abilities
By obtaining DNA cores, Model A can mimic the forms of enemy characters, allowing use of their attacks.
 * Buckfire - In this A-Trans form, access to a series of agility attacks is unlocked, including a diving kick that can destroy certain boxes. This is the fastest for travel in the game as the player is always in a dashing motion while moving.
 * Chronoforce - In this A-Trans form, the player can move freely through water (similar to Model L), and fire icicles. His hide is completely invulnerable to all forms of offense. In addition, he possesses an electronic-disrupting technique called 'Time Bomb' that gives the sensation of slowing down time. Chronoforce is rendered immobile if not in water, but can still use Time Bomb combined with his hide makes his ability just as ideal on the ground.
 * Rospark - In this A-Trans form, the player can climb ropes, shoot Rose Stingers, and use his whips to attack enemies on ground or attached to poles or electrify them with a charged attack as well as airborne enemies. On the ground, Rospark remains in an extremely slow-moving bulb form, while his true power blossoms in flower form whenever attached to a pole.
 * Argoyle &amp; Ugoyle - In this A-Trans form, the player controls Argoyle and attacks with Ar Bombs, spherical weapons that explode after ricocheting. This form can 'infinite dash' and summon Ugoyle as a 'ghost' player that follows all over the player's movements and is invulnerable to harm. In addition, Ugoyle is not affected by terrain and can retrieve items in out-of-reach areas. There is a special monthly unlockable chip which changes the form's Ar Bombs into soccer balls.
 * Queenbee - In this A-Trans form, the user can fly into the air to collect items previously inaccessible. The player is also able to carry objects larger than itself, usually by pulling it from underground.
 * Hedgeshock - In this A-Trans form, the character can roll through small spaces without having to transform into their human form (very much like Sonic's spin abilities) and can cut through obstacles while doing so. She also has access to a Rakuhouha-like attack
 * Vulturon - In this A-Trans form, the ability to stick to walls and weights to move them is available. The user is able to hover in the air until Biometal energy runs out.
 * Bifrost - In this A-Trans form, the user gains a drastic size increase. Bifrost can attack with buzz-saws that deals multiple hits. Its other attack includes Ice Fangs that fire ice shards while the mouth is completed extended, giving the user limited invulnerability with the mouth. It also has two attacks not listed in the move list screen: Tail Swing, which flings enemies away while turning the opposite direction; and crushing enemies while falling to the ground or landing on them. The form's jaws are strong enough to destroy the plasma-powered electric blocks.
 * Aeolus - As a copy of Aeolus using the Model H Biometal, this A-Trans form allows the use of the same abilities of Model HX in the first Mega Man ZX game, including Enemy Analyzing.
 * Atlas - As a copy of Atlas using the Model F Biometal, this A-Trans form allows the use of the same abilities of Model FX in the first Mega Man ZX game, including Buster Edit.
 * Thetis - As a copy of Thetis using the Model L Biometal, this A-Trans form allows the use of the same abilities of Model LX in the first Mega Man ZX game, including Item Searching.
 * Siarnaq - As a copy of Siarnaq using the Model P Biometal, this A-Trans form allows the use of the same abilities of Model PX in the first Mega Man ZX game, including Night Scope and attacking enemies on the touch screen.
 * Vent/Aile - Imitating Vent/Aile in the Model ZX form is available. The abilities of Model ZX from the previous Mega Man ZX game are available for use, as well as a character-specific ability for Grey and Ashe that was not featured in the first ZX game. Grey's (Aile's) character-specific ability in Aile's form is 'Energy Fissure' ('Fission' in the English version), a downward stab move that spews forth rocks on impact, while Ashe's (Vent's) form is 'Rising Fang', which consists of a jumping upper slash and a saber-wave projectile (distinct from a Sonic Boom in that it does not penetrate enemies or obstacles). However, only the boss can link up this attack with the standard three-hit combo.

Trivia

 * It is interesting to note that Model A's overall triangular shape resembles an upside down version of the Model W used by Serpent and Albert to Megamerge, a clever allusion to its 'predecessor'.