Spontaneous symmetry breaking in colloidal systems increasingly fascinates scientists due to the promise of new, emergent functionalities and unique properties. Here, we introduce a chemically active system where symmetry is spontaneously broken in the particle motion rather than being encoded into their structure. Using symmetric MnO₂ microrods without any apparent structural features or chirality, we observe the emergence of a combination of rotational and translational motion near a substrate that resembles rolling. This motion is further enhanced if a chemically active substrate is present. To explain the occurrence of highly active motion, we investigate the flows that lead to propulsion. The results are rationalized by a theoretical model showing spontaneous symmetry breaking with a bifurcation above a critical Péclet number. To identify the chemical reactions leading to the occurrence of flow, we confirm the species involved using electron paramagnetic resonance (EPR) and X-ray photoelectron spectroscopy (XPS). Overall, the results demonstrate the potential of spontaneous symmetry breaking to accomplish active rolling motion of symmetric chemically active microparticles.