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
Fuel saving device difference in economy or power in tests on ten separate vehicles, finding that the device did nothing but light up. "Car and Driver" magazine found that the device contains nothing but "a simple circuit board for the LED lights", and disassembly and circuit analysis reached the same conclusion. The maker disputed claims that the device has no effect, and proposed changes to the "Consumer Reports" testing procedure, which when implemented made no difference to the results. Another device described as 'electronic' is the 'Electronic Engine Ionizer Fuel Saver'. Testing of this device resulted in a loss of power and an