Abstract: A hand-held LCD game machine is combined with a cartridge in which the program datum is memorized. The game machine has a smaller and oblong shape LCD display. When the game is operated in a vertical scrolling manner, the LCD display portion is used lengthwise, while when the operated game is in a horizontal scrolling manner, the LCD display is used sideways. The game is operated by both thumbs of the player's bands, and plural operative key sets and switches are provided in proper positions so that the game machine may be smoothly operated by the player in either a lengthwise or sideways position.