An apparatus for joystick control circuit, used in connection with a game port that is connected to the joystick control circuit and comprises a plurality of pins addressed to a plurality of joystick buttons, comprises: a connector, an electric switch, and a latch device. The connector comprises a plurality of pinholes that corresponds to the plurality of pins of the game port addressed to the joystick buttons, and a signal pinhole, such that the apparatus is connected to the joystick control circuit through the connector. The electric switches is connected to the pinholes of the connector that are addressed to the joystick buttons to perform either a short-circuit or open circuit of the joystick button addressed pinholes. The latch device is connected to the electric switch and the signal pinhole, such that the latch device commands the electric switch when receiving a signal from the signal pinhole.


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> Network-based method and system for transmitting digital data to a client computer and charging only for data that is used by the client computer user

> Slot machine with win completion feature

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