public Animator anim;

    private void Start()
    {
        anim.enabled = true;
    }

    private void Update()
    {
        if (Input.GetKeyDown(KeyCode.DownArrow) || Input.GetKeyDown(KeyCode.UpArrow) || Input.GetKeyDown(KeyCode.LeftArrow) || Input.GetKeyDown(KeyCode.RightArrow))
        {
            StartCoroutine(PlayAnim());
        }

        if (Input.GetKeyDown(KeyCode.W) || Input.GetKeyDown(KeyCode.A) || Input.GetKeyDown(KeyCode.S) || Input.GetKeyDown(KeyCode.D))
        {
            StartCoroutine(PlayAnim());
        }
    }


    IEnumerator PlayAnim()
    {
        yield return new WaitForSeconds(3);
        anim.SetBool("HitKey", true);
    }
}