Builded game dont work with self made bluetooth mouse controller.

Normaly my remote mose fine on other applications or windows, but when I try it on my game, It doesn't click at all.

I am using this code for destroying game objects in game :

 void Update(){
     if (Input.GetMouseButtonDown (0)) {
             Invoke ("DestroyMe",0.13f);
     }
 }
     public void OnMouseDown(){
     //some code for data collect for csv
     Invoke ("DestroyMe",0.13f); 
     }
 void DestroyMe()
 {
     Destroy(gameObject);
 }

And this I am using for buttons to click like "Start", "Menu","Exit":

 public void LoadLevel(string name){
         Debug.Log ("Level load requested for:"+ name);
         Application.LoadLevel(name);
     }
     public void ExitGame(){
         Debug.Log ("Exit The Game Now!");
         Application.Quit();
     }