control bear walk and stop

BearWalk.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class BearWalk : MonoBehaviour
{
    private Animator bearAnm;
    // Start is called before the first frame update
    void Start()
    {
        bearAnm = GetComponent<Animator>();
    }

    // Update is called once per frame
    void Update()
    {
        if(Input.GetKey("up"))
        {
            transform.position += transform.forward * 0.01f;
            bearAnm.SetBool("isWalk", true);
        }
        else
        {
            bearAnm.SetBool("isWalk", false);
        }
    
        if (Input.GetKey("right"))
        {
            transform.Rotate(0,2,0);
        }
    
        if (Input.GetKey("left"))
        {
            transform.Rotate(0, -2, 0);
        }
    }
}