Foremost provided is a prize acquisition game apparatus capable of alleviating the burden of the difficulty adjustment operation, and secondly provided is an operating system of a prize acquisition game apparatus capable of promoting the efficiency in operating a prize acquisition game apparatus. In each of the prize acquisition game apparatuses, provided is a detection unit for detecting the respective types of arm and claw mounted on a catching unit, wherein an information processing terminal transmits an externally input search criterion to a server, and the server creates a search database associating the type of prize and the respective types of arm and claw based on the respective types of prize, arm and claw transmitted from each of the prize acquisition game apparatuses, and extracts from the search database the respective types of arm and claw according to the search criterion transmitted from the information processing terminal and transmits this to the information processing terminal.