He constantly keeps his cool, even in times of crisis. Outwardly, Zero is a somewhat cold individual, and a ruthless Maverick Hunter. When he was briefly disabled during his fight with Sigma, Zero manifested a 'W' emblem in his forehead lens. In addition, Wily claimed that Zero was powered by a power source that was even stronger than Bassnium. His body material is comprised of a Titanium Z alloy, and is equipped with peculiar mechanisms called the Z-Brain (the head lens) and the Z-Heart (the chest lens), which conceal an unknown power. Like X, Zero's power source is solar energy. A small 'backpack' device is also added as both storage and recharging unit for the Z-Saber. His shoulders gained reinforced shoulder plates, along with improved arm guards, new dash thrusters and golden designs on his legs, and thicker chest armor.

When Zero was reconstructed by Serges of the X-Hunters, his body received several upgrades that completed his design. This version of Zero was apparently an incomplete prototype, since his upgraded design is shown in his blueprints in Mega Man 2: The Power Fighters. He possessed two green lenses on his chest, arm guards on his wrists, and a flowing blond head of hair that extended from the back of his helmet. His forehead was white with a deep blue lens on the front. One of his shoulders was emblazoned with a stylized 'Z' insignia, and his helmet had extended face guards around his cheeks and curved ridges on top that resembled horns. In Zero's first appearance, his armor's design had a distinct red color with white highlights along his knees, toes, abdomen, and shoulders.

5.3 Rockman X The Novel: Irregulars Report.

Base delta zero vs glassing