slime-blood-and-pain/Assets/Scripts/DestroySelfAfterSomeTime.cs

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

public class DestroySelfAfterSomeTime : MonoBehaviour {
    [BeforeStartAttribute]
    public float time = 1f;

    protected void Start() {
        Invoke("Delet", time);
    }

    protected void Delet() {
        Destroy(gameObject);
    }
}