Handheld electronic game by less bright dots). In 1978 the Milton Bradley Company entered the handheld market with Simon, a simple color-and-sound-matching game. Simon had no dedicated display, but featured four colored, lighted buttons; the original version was large enough to be used as a tabletop game or a handheld; later versions became increasingly smaller. The same year, Parker Brothers also released Merlin, a more sophisticated handheld which could play six different games using an array of 11 buttons with integrated LEDs. Despite their relative simplicity, each of these early games was highly successful. The initial success of Mattel and Parker Brothers' entries
For the World Is Hollow and I Have Touched the Sky holds the key to setting Yonada back on course, and calls the "Enterprise" to share this information, which causes his obedience device to be activated. Kirk and Spock transport back to Yonada, and Spock removes the device from McCoy while Kirk tries to explain the truth to Natira. When Natira's own device is activated, McCoy removes it while Kirk and Spock again deal with the Oracle. Spock learns from the Book how to enter the control room behind the Oracle's altar, where they discover the ship's navigational controls and correct Yonada's course. Spock also discovers the Fabrini archives, which contain