How to shoot multiple bullets ar once

I have my character shooting bullets in the game. But I want to know how my character can shoot multiple bullets at once.

Here is the example: https://www.youtube.com/watch?v=-H2ka0kH71s

Can someone show how to make my character or weapon shoot multiple bullets at once, per click?

My Shooting code:

var playerProjectile: GameObject;

Code (csharp):

1.  
2. function Update () {
3.  
4.     if(Input.GetKeyDown("space")  Time.time > nextShot){
5.  
6.        nextShot = Time.time * timeBetweenShots;
7.  
8.        Instantiate(playerProjectile, _transform.position, Quaternion.identity);
9.     }
10.  
11. }
12.  

 

Take away the word "Down". This will make it so that when you hold down the space bar your weapon will shoot continuously.

 

Something similar to the following may be what you need, as a replacement to the single shot you have firing now.

Code (csharp):

1.  
2. for(int i = 0; i < numberOfShotsVariable; i++)
3. {
4.    Instantiate(playerProjectile, _transform.position, Quaternion.identity);
5. }
6.