A first grounded portion is at least one of portions of an apparatus that are grounded, and vibrates in accordance with a vibration of at least a first vibration unit. A second grounded portion is at least one of the portions of the apparatus that are grounded, and vibrates in accordance with a vibration of at least a second vibration unit. Then, a first control signal for controlling the vibration of the first vibration unit and a second control signal for controlling the vibration of the second vibration unit are generated, whereby, in a state where the apparatus is on a certain surface, the apparatus moves on the certain surface by a vibration of the first grounded portion grounded on the certain surface and/or a vibration of the second grounded portion grounded on the certain surface.

A first grounded portion is at least one of portions of an apparatus that are grounded, and vibrates in accordance with a vibration of at least a first vibration unit. A second grounded portion is at least one of the portions of the apparatus that are grounded, and vibrates in accordance with a vibration of at least a second vibration unit. Then, a first control signal for controlling the vibration of the first vibration unit and a second control signal for controlling the vibration of the second vibration unit are generated, whereby, in a state where the apparatus is on a certain surface, the apparatus moves on the certain surface by a vibration of the first grounded portion grounded on the certain surface and/or a vibration of the second grounded portion grounded on the certain surface.