To provide an X-Y optical axis driving device which does not have the swinging phenomenon of spotlight which is caused by vibration that lowers the guide precision of a guided vehicle and backlash, has a simple structure and is easily maintained.

An amusement device which makes model traveling bodies compete with each other does not need a gear mechanism, eliminates backlash and does not need a lubrication mechanism by using a pulse motor (fine motor) that does not need a mechanical speed reducing mechanism for an X axis pulse motor 31 and a Y axis pulse motor 32 of an X-Y optical axis driving device. Also, it does not need to attach a Y axis pulse motor to a motor mounting tool 33 by using a mechanism of an arrow-shaped shaft 34. Therefore, movement mechanically becomes simple and software becomes light, which makes it possible to perform fine and high speed control. Also, because the motor 32 can be fixed, small vibrations are eliminated and the swinging phenomenon of spotlight can be eliminated.