To provide a portable game machine which can provide a new amusement to game players.
This portable game device is constituted by attaching an input key 20, a smell sensor, and a display 40 to a box body 10 in which a circuit is contained. The portable game device performs a specified game by receiving an operation content from the input key 20 by the operation of a game player. Also, the portable game device measures the fetor oris of the game player by the smell sensor. Also, the portable game device is equipped with an image data-forming unit which forms image data to display a specified character on the display 40. The image data forming unit forms the image data based on a game result and a measurement result by the smell sensor. Therefore, the character which is displayed on the display 40 changes in response to the game result and the measurement result by the smell sensor.
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