using UnityEngine;
using System.Collections;

public class SpawnCircleNew : MonoBehaviour {

	int numObjects = 50;
	public GameObject prefab;
	private Quaternion rot;

	void Start() {
		Time.timeScale = 0.001f;
		Vector3 center = transform.position;
		for (int i = 0; i < numObjects; i++) {
			int a = i * (360/numObjects);
			Vector3 pos = RandomCircle(center, 2.0f ,a);

			Quaternion rotation = Quaternion.FromToRotation (Vector3.down, pos - center);
			Instantiate (prefab, pos, rotation);
		}
	}
}


------


using UnityEngine;
using System.Collections;

public class BulletBehavior : MonoBehaviour {

	void Update (){
		moveWithAngle (360, 0.05f);
	}

	public void moveWithAngle (float pAngle, float pSpeed) {
		this.transform.Translate(pSpeed * Mathf.Cos(Mathf.PI / 180 * pAngle), pSpeed * Mathf.Sin(Mathf.PI / 180 * pAngle), 0f);
	}
}