Mole.cs

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

public class Mole : MonoBehaviour {
	public GameObject prefab;
	GameObject instance;

	void Start () {
		this.instance = Instantiate (prefab) as GameObject;
	}

	void Update () {
		this.instance.transform.Translate (0, 0.08f, 0);
	}
}

MoleGenerator.cs

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

public class MoleGenerator : MonoBehaviour {
	Mole mole1;
	Mole mole2;
	Mole mole3;

	void Start () {
		this.mole1 = GetComponent<Mole>() as Mole;
		mole1.transform.position = new Vector3 (-6.02f, -3.51f, 0);

		this.mole2 = GetComponent<Mole>() as Mole;
		mole2.transform.position = new Vector3 (0.2f, -4.31f, 0);

		this.mole3 = GetComponent<Mole>() as Mole;
		mole3.transform.position = new Vector3 (6.13f, -2.16f, 0);
	}

	void Update () {

	}
}