To enhance the amusement characteristic of an amusement device using a ball and a thrown object, so as to be unwearisome for a player and to secure lasting customer collecting power for a center that runs the device.

A first sensor S1 for detecting the screen arrival position of the ball 2 is disposed directly in front of a screen 3. A second sensor S2, and a third sensor S3 (an image camera 10) for detecting the initial position of the player (the initial position of the ball 2) are arranged in front of the first sensor S1. A control part 6 measures the speed and flying direction of the ball 2 on the basis of the detection of the sensors S2 and S3 to predict the arrival position of the ball 2 on the screen 3, and starts to change the image of a goal-keeper on the screen 3 and displays the image of the ball 2 superposed on the screen 3 on the basis of the detected result of the first sensor S1.