My boolean value won't get called from other script

so I have a problem with my code there is a boolean value in one script that controls whether or not the main game is started here is my code for the two scripts

 //First script
 //Checks if the laser, this.gameObject has collided with the right game
 //object otherwise it will stop the game
 using UnityEngine;
 using System.Collections;
 
 public class DestroyShotR : MonoBehaviour {
 
     public GameObject contactExpolosion;
     public StartGame game;
 
     void OnTriggerEnter (Collider other) {
         
         if (other.tag == "Right") {
             //put add score here
             Debug.Log ("Add Score");
             Destroy (other.gameObject);
             Destroy (this.gameObject);
             Instantiate (contactExpolosion, other.transform.position, Quaternion.identity);
         } else if (other.tag == "Boundary") {
             return;
         } else {
             Debug.Log ("Game Stopping");
             Destroy (other.gameObject);
             Destroy (this.gameObject);
             Instantiate (contactExpolosion, other.transform.position, Quaternion.identity);
             game.started = false;
         }
     }
 }
 
 //This uses a on trigger enter event to check if the camera is in the play area
 //The bool is used for other scripts to check if the game is started
 using UnityEngine;
 using System.Collections;
 
 public class StartGame : MonoBehaviour {
 
     public bool started;
 
     public void OnTriggerEnter (Collider other) {
         started = true;
     }
 }