Various embodiments of reinforced mirror microstructures for a surface micromachined optical system are disclosed. The device comprises at least two distance sensors, which operate in a contactless manner and are situated in a previously known configuration to a rotational axis of the turntable. Therefore, a voltage adjustment width of the output voltage regulator can be reduced and a power loss can be reduced. The joint connecting the cable retaining member to the body of the cable guard permits the opening of the cable retaining member to swivel forwards towards the mounting portion. The round of play is repeated for a selected number of rounds with the same players, and a winner is selected according to the total number of points assigned to each player for the selected number of rounds.