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
Game of the Generals are often combined with each other to make the game more challenging. In 1980, Ideal released "The Generals Electronic Strategy Game". The rules and piece ranks are the same as above, except that the "Spies" are "Agents", and an electronic arbiter determines which piece wins in a confrontation; neither player sees his opponent's pieces. The plastic pieces have selected notches on their bases, which depress certain indentations in the electronic arbiter's twin slots. The lights flash and a short musical phrase plays before a light labeled "battle winner" is illuminated. The losing piece is removed from the board, while the