function Freeze(){

    var allRigidbodies = GameObject.FindGameObjectsWithTag("RigidbodyObject");
    for(rigi in allRigidbodies){
            rigi.rigidbody.isKinematic = true;
    }

    yield WaitForSeconds(2);

    for(rigi in allRigidbodies){
            rigi.rigidbody.isKinematic = false;
            Debug.Log("false");
    }
}