void Start()
{
    //Start the coroutine we define below named ChangeAfter2SecondsCoroutine().
    StartCoroutine(ChangeAfter2SecondsCoroutine());
}

IEnumerator ChangeAfter2SecondsCoroutine()
{
    //Print the time of when the function is first called.
    Debug.Log("Started Coroutine at timestamp : " + Time.time);

    //yield on a new YieldInstruction that waits for 2 seconds.
    yield return new WaitForSeconds(2);

    //After we have waited 2 seconds print the time again.
    Debug.Log("Finished Coroutine at timestamp : " + Time.time);
    //And load the scene
    Application.LoadLevel("Game");  //<-- This is the correct name of the scene
}