Zero -MMX-

Personality: Outwardly, Zero is a somewhat cold individual, and a ruthless Maverick Hunter. He constantly keeps his cool, even in times of crisis. He is also very straightforward and down-to-earth, often sarcastically snapping back at the unpleasantries of Mavericks and destroying them without entertaining their philosophies or taunts. Despite this, Zero truly does have the capacity to care for others. He is very protective of his allies, such as X and the Maverick Hunters, going to great lengths to ensure their safety. He has a great distaste for the deaths of innocents. He will even disregard his own safety, sacrificing himself, to save others, such as during the battle with Vile and willingly piloting the shuttle into the Eurasia colony. His care for others was detrimental during the Great Repliforce War, where he was forced to face his friends, Iris and Colonel, and their deaths at his hands caused him great emotional turmoil. Even though Zero does not openly show it, he too seems to long for peace between humans and Reploids. However, he has said that he doesn't have any problems fighting, unlike his more pacifistic friend, X. Zero initially acted as something like a mentor to X, understanding his latent potential and even helping him unleash it. As X grew stronger, Zero gained more respect for him, seeing him as an even greater Maverick Hunter than himself. Even then, he still remains a voice of reason who helps ground X and overcome his doubts. Zero again acted the mentor upon meeting Axl. Though their relationship was tenuous at first, due to Zero being exasperated by Axl's enthusiasm and criminal background, he came to respect him as well while still playfully teasing him. Zero's original persona was much different. He was a violent, disobedient, and uncontrollable Maverick, which was the original reason his creator Dr. Wily sealed him away in a capsule. When he was released, he went on a rampage and killed many people and caused massive destruction. It can be triggered through traumatic events.

Appearance: His shoulders gained reinforced rectangular shoulder plates, along with improved arm guards, new dash thrusters and golden accents on his legs, and thicker chest armor. A small pack was also added to his back to store his Z-Saber when not in use. Zero's most distinctive traits are his red and white armor, a horned helmet with a blue gem on his forehead, and a long blond ponytail. He is around 5'11 feet tall.

Abilities: Zero's initial design only featured the Zero Buster as a weapon, though it was much more powerful than X's X-Buster, capable of tearing an arm off of Vile's Ride Armor. Additionally, he was shown to have immense physical strength and coordination, as he was able to match and even surpass Sigma in hand-to-hand combat during their initial encounter. Zero's most iconic weapon is the Z-Saber, which he received when reconstructed in Mega Man X2. He is an incredibly skilled swordsman, capable of performing a variety of special Techniques by analyzing and learning from the data of his opponents. He can also wield other melee weapons such as daggers or hammers. Like X, Zero's power source is solar energy. His body material is comprised of a Titanium Z alloy, and is equipped with mechanisms called the Z-Brain and the Z-Heart, which conceal an unknown power.[48] In addition, Wily claimed that Zero was powered by a power source that was even stronger than Bassnium.

Zero is the deuteragonist of the Megaman X series. He is a high-ranking Maverick Hunter, a dedicated warrior who fights Mavericks alongside X and Axl. Though he is secretly the greatest creation of Doctor Albert W. Wily, making him effectively the successor of Bass, Zero chooses to fight for what he believes in rather than letting the circumstances of his creation determine his destiny.