Chou Mashin Chaser is a powerful upgraded form associated with Chase in Kamen Rider Drive, appearing as a stronger, more advanced version of Mashin Chaser. He serves as a major ally and sometimes a conflicted anti-hero, fighting alongside the protagonists against dangerous foes. This form emphasizes speed, combat power, and machine-like precision, reflecting Chase’s evolution from an enemy enforcer into a protector. He plays an important role in the series’ later battles and character development.