using UnityEngine; public class Bullet : MonoBehaviour { public float Speed = 0.5f; float timer; // Start is called once before the first execution of Update after the MonoBehaviour is created void Start() { } // Update is called once per frame void Update() { transform.Translate(new Vector3(0,Speed,0)); timer += Time.deltaTime; if(timer > 2) { Destroy(gameObject); } } }