GAME SYSTEM, GAME PROCESSING METHOD, GAME DEVICE AND GAME PROGRAM

摘要

PROBLEM TO BE SOLVED: To allow a user to set a reference attitude of an operation device with natural operation.SOLUTION: A game system accepts a predetermined game operation as first input prior to game control processing. An attitude of an operation device when the first input is performed is set as a temporary reference attitude. The game system further accepts as additional input a predetermined game operation performed when the attitude of the operation device is within a predetermined range defined by the temporary reference attitude after the first input. When such additional input is performed a predetermined number of times, a reference attitude is determined using at least one of the temporary reference attitude and attitudes of the operation device when additional input is performed the predetermined number of times. The game control processing is executed on the basis of the attitude of the operation device and the reference attitude.