Atari entered the handheld market with a home handheld version of its arcade game called Touch Me.   The object of the game was fun, simple and challenging.   The perfect formula for a game to appeal to everyone.    The game would produce a sound and flash a color in a series of patterns, all the player had to do was repeat them exactly and their score would increase.   As you completed each pattern a newer, harder and faster pattern would follow until the pattern became a blur of color and sound.   Many companies copied the Atari game....   ever heard of Simon?