Fix healing bullets not being removed on restart

Assets/Scripts/PlayerControl.cs

@@ -267,7 +267,7 @@ public class PlayerControl : MonoBehaviour
     {
       case POWERUP_HEALINGBULLET:
         GameObject bullet = Instantiate(healingBulletPrefab, pos, transform.rotation) as GameObject;
-        bullet.transform.parent = deleteAllChildrenAtRestart.parent;
+        bullet.transform.parent = deleteAllChildrenAtRestart;
         bullet.GetComponent<Bullet>().shoot(new Vector2(dir, 0));
         break;
       default: