A spinning top toy for a battle game which has a predetermined rotational direction, comprising: a body which does not function as an independent spinning top toy, and a shaft portion, wherein the body and the shaft portion are separate pieces, wherein the body has a first hook and the shaft portion has a second hook, the body and the shaft portion being switchable between a couplable state and a decouplable state depending on a relative rotational position around the axis of the shaft portion, the first hook and the second hook being vertically aligned in the couplable state, the first hook and the second hook being vertically misaligned in the decouplable state, wherein the spinning top toy further comprises an urging unit that brings the upper face of the first hook and the bottom face of the second hook into contact by an urging force of a spring in the couplable state, and wherein the body and the shaft portion enter the couplable state by turning the shaft portion in the decouplable state against the urging force of the spring in a direction opposite to the predetermined rotational direction relative to the body, and the body and the shaft portion engage each other by bringing the upper face of the first hook into contact with the bottom face of the second hook by the urging force of the spring, characterized in that, when an external force turns the shaft portion of the turning spinning top toy in the predetermined rotational direction relative to the body so that the body and the shaft portion are switched to the decouplable state, the body is detached from the shaft portion and is moved away from the shaft portion by the urging force of the spring, and the shaft portion falls down. a body which does not function as an independent spinning top toy, and a shaft portion, wherein the body and the shaft portion are separate pieces, wherein the body has a first hook and the shaft portion has a second hook, the body and the shaft portion being switchable between a couplable state and a decouplable state depending on a relative rotational position around the axis of the shaft portion, the first hook and the second hook being vertically aligned in the couplable state, the first hook and the second hook being vertically misaligned in the decouplable state, wherein the spinning top toy further comprises an urging unit that brings the upper face of the first hook and the bottom face of the second hook into contact by an urging force of a spring in the couplable state, and wherein the body and the shaft portion enter the couplable state by turning the shaft portion in the decouplable state against the urging force of the spring in a direction opposite to the predetermined rotational direction relative to the body, and the body and the shaft portion engage each other by bringing the upper face of the first hook into contact with the bottom face of the second hook by the urging force of the spring, characterized in that, when an external force turns the shaft portion of the turning spinning top toy in the predetermined rotational direction relative to the body so that the body and the shaft portion are switched to the decouplable state, the body is detached from the shaft portion and is moved away from the shaft portion by the urging force of the spring, and the shaft portion falls down.