This article summarizes the recent advancements in the design, fabrication, and control of microrobotic devices for the diagnosis and treatment of brain disorders. With a focus on diverse actuation methods, we discuss how advancements in materials science and microengineering can enable minimally invasive and safe access to brain tissue. From targeted drug delivery to complex interfacing with neural circuitry, these innovative technologies offer great clinical potential. The article also underscores the importance of device mechanics for minimizing tissue damage and the growing role of advanced manufacturing techniques for maximizing functionality, offering an up-to-date multidisciplinary perspective on this rapidly evolving field.