Abstract: A windup spring using toy having a divisible container of a single form in its undivided state and including a winder, and a windup spring drive toy to be contained within the container, having a windup spring drive unit therein, which is wound up by the winder of the container when the windup spring drive toy is contained within the container. The windup spring using toy further includes provisions for holding the windup spring drive toy onto the container when the windup spring drive toy is contained within the container, and provisions for releasing the holding of the windup spring drive toy in the container by the output energy of the windup spring drive unit, whereby, on putting the windup spring using toy on a floor after winding up the windup spring, the container divides into two and the windup spring drive toy suddenly appears and starts to run on the floor.