A transformable toy which is transformed without any direct touching by a user, displays visual information that is invisible before the form of the toy is changed, and has a game element in addition to the form change is provided. A transformable toy reversibly transformed between a first form and a second form includes a toy main body which changes its form to form the first form and the second form, a restricting mechanism which restricts the form change of the toy main body, and a transformation activating body for detecting physical stimulation from outside and releasing the restriction by the restricting mechanism. The toy main body includes a display body having visual information thereon, and the display body is disposed at such a position that the visual information of the display body is invisible to a user in the first form while the visual information of the display body is visible to the user in the second form.