A game system includes, for example, a game console and a plurality of hand-held game apparatuses functioning as an operating means. In the game system, a game for causing a plurality of player characters simultaneously displayed to find a hidden item in a game field is performed. Then, when a distance between a non-displayed item hidden, which is an object to be found, and the player character comes within the range of the predetermined distance, a notification sound that varies depending on the distance, for example, is output from a speaker of the hand-held game apparatus that operates the player character.