A tactile device for virtual reality simulations includes an outer hollow sphere, a pliable inner hollow sphere, a plurality of actuators, and a framework. The plurality of actuators physically couple the outer hollow sphere to the pliable inner hollow sphere, and are configured to dynamically and physically reshape the pliable inner hollow sphere as the outer hollow sphere and the pliable inner hollow sphere rotate. The framework includes a plurality of powered rollers that support the outer hollow sphere and control a rotational speed and direction of the outer hollow sphere and the pliable inner hollow sphere. A sphere controller then modifies a physical configuration of the pliable inner hollow sphere based on a detected biomechanical abnormality of a user within the tactile device.