Scriptum/Assets/ParticleDisable.cs

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

public class ParticleDisable : MonoBehaviour
{
    public int loadedInt;
    void Update()
    {
        loadedInt = PlayerPrefs.GetInt("rock");
        StartCoroutine(Destroy(loadedInt));
    }

    IEnumerator Destroy(int loaded)
    {
        if (loaded == 0)
        {
            yield return new WaitForSeconds(1);
            Destroy(gameObject);
        }
    }
}