For this task, we can take the skills we've already learned and make the bullets responsible for their self-destructive behavior, as follows:

1. Create a new C# script in the Scripts folder and name it BulletBehavior.
2. Drag and drop the BulletBehavior script onto the Bullet prefab in the Prefabs folder and add the following code:

public class BulletBehavior : MonoBehaviour 
{
     // 1
    public float onscreenDelay = 3f;
 
    void Start () 
    {
        // 2
        Destroy(this.gameObject, onscreenDelay);
     }
 } 

Let's break down this code, as follows:

• We declare a float variable to store how long we want the Bullet prefabs to remain in the scene after they are instantiated.
• We use the Destroy() method to delete the GameObject.
  • Destroy() always needs an object as a parameter. In this case, we use this keyword to specify the object that the script...