A game system comprising: a gaming console including a gaming console main body , wherein the gaming console comprises a game control device that controls a game; and a game controller having a game controller body attachably/detachably mountable to the gaming console main body or a support unit ; the game controller including: a game controller body attachably/detachably mountable to the gaming console main body or the support unit , wherein the game controller body comprises an attachment rail for attachably/detachably mounting the game controller body to the gaming console main body or the support unit and a vibrator that vibrates the body based on a given signal; wherein one of the gaming console main body , the game control device, and the game controller is provided with: a detector that detects a mounted/unmounted state indicating either a mounted state in which the body is mounted to the gaming console main body or the support unit , or an unmounted state in which the body is detached from the gaming console main body or the support unit ; and wherein the game controller further comprises a control circuit that controls vibration of the vibrator in accordance with the detected mounted/unmounted state. a gaming console including a gaming console main body , wherein the gaming console comprises a game control device that controls a game; and a game controller having a game controller body attachably/detachably mountable to the gaming console main body or a support unit ; the game controller including: a game controller body attachably/detachably mountable to the gaming console main body or the support unit , wherein the game controller body comprises an attachment rail for attachably/detachably mounting the game controller body to the gaming console main body or the support unit and a vibrator that vibrates the body based on a given signal; wherein one of the gaming console main body , the game control device, and the game controller is provided with: a detector that detects a mounted/unmounted state indicating either a mounted state in which the body is mounted to the gaming console main body or the support unit , or an unmounted state in which the body is detached from the gaming console main body or the support unit ; and wherein the game controller further comprises a control circuit that controls vibration of the vibrator in a game controller body attachably/detachably mountable to the gaming console main body or the support unit , wherein the game controller body comprises an attachment rail for attachably/detachably mounting the game controller body to the gaming console main body or the support unit and a vibrator that vibrates the body based on a given signal; wherein one of the gaming console main body , the game control device, and the game controller is provided with: a detector that detects a mounted/unmounted state indicating either a mounted state in which the body is mounted to the gaming console main body or the support unit , or an unmounted state in which the body is detached from the gaming console main body or the support unit ; and wherein the game controller further comprises a control circuit that controls vibration of the vibrator in accordance with the detected mounted/unmounted state. <EOS>