public class Demo_Playback : MonoBehaviour {

    GameObject CAT;

	// Use this for initialization
	void Start ()
    {
        CAT = GameObject.Find("C.A.T");
    }

	// Update is called once per frame
	void Update ()
    {
        if (CAT != null)
        {
            if (Input.GetKeyDown(KeyCode.Space))
            {
                CAT.transform.GetChild(0).GetComponent<CAT_LayerContents>( ).PlayAndStopAtIndex(0, 3, .8f);
            }
        }
	}
}