public var go = new GameObject[3];
 var prefab1 : GameObject ;
 var prefab2: GameObject ;
 var prefab3 : GameObject ;
 var prefab4 : GameObject ;
 var prefab5 : GameObject ;
 var prefab6 : GameObject ;




 function Start(){
 go[0]=prefab1;
 go[1]=prefab2;
 go[2]=prefab3;
 go[2]=prefab4;
 go[2]=prefab5;
 go[2]=prefab6;


var instance : GameObject = Instantiate (go[Random.Range(0,3)],transform.position + Vector3(0,0,0),transform.rotation);

 }

function OnTriggerEnter2D(other: Collider2D) {
 if (other.name == "Sphere"){

//DESTROY LINE GOES HERE smth like Destroy(instance); but that doesn't work..
Debug.Log("It's working");

 Instantiate (go[Random.Range(0,3)],transform.position + Vector3(0,0,0),transform.rotation);
 }
 }