An apparatus for playing a game comprising a playing surface having a first area and a second area, a projectile, and at least two propulsion devices. The viewing assembly is particularly suited for traversing bends of relatively small radii in an endotracheal breathing tube without scraping accumulated biological material from the inner surface of the breathing tube that could collect on the distal end of the light guide and obscure the endoscopic view. The drive mechanism has a predetermined stroke cycle and, over the course of each stroke cycle, the motor is operated at different regulated speeds initiated when the drive mechanism is at a predetermined position.