Added Win Menu and fixed restarting more than one time

Assets/Scripts/DeadMenu.cs

@@ -6,21 +6,15 @@
 
 public class DeadMenu : MonoBehaviour {
 
-    Button restart, options, exit, exitOptions;
+    public Button restart, options, exit, exitOptions;
 
 
     public OptMenu optMenu;
 
     void Start() {
-        restart = GameObject.FindWithTag("Restart").GetComponent<Button>();
         restart.onClick.AddListener(RestartGame);
-
-        options = GameObject.FindWithTag("Options").GetComponent<Button>();
-        options.onClick.AddListener(OptionsMenu);
-
-        exit = GameObject.FindWithTag("Exit").GetComponent<Button>();
-
 
+        options.onClick.AddListener(OptionsMenu);
     }
 
     //Restart Method

Assets/Scripts/Key.cs

@@ -6,6 +6,8 @@ public class Key : MonoBehaviour {
 
     public GameObject[] ignoreCollisions;
 
+    public GameObject WinMenu;
+
     GameObjectPool keyPool;
 
     private void Start() {
@@ -23,7 +25,8 @@ void OnCollisionEnter2D(Collision2D collision) {
             keyPool.AddGameObject(gameObject);
 
             if(Variables.keysObtained == 8) {
-
+                WinMenu.SetActive(true);
+                Time.timeScale = 0;
             }
         }
     }

Assets/Scripts/TimeUI.cs

@@ -5,8 +5,9 @@
 
 public class TimeUI : MonoBehaviour {
 
+    public float timeInSeconds;
+
     Text text;
-    float timeInSeconds;
     Cam mainCamera;
 	// Use this for initialization
 	void Start () {

Assets/Scripts/WinMenu.cs

@@ -0,0 +1,57 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.UI;
+using UnityEngine.SceneManagement;
+
+public class WinMenu : MonoBehaviour {
+
+    public Text TimeScore, GameScore, FinalScore, TimeUI;
+
+    public Button restart, options, exit;
+
+    public OptMenu optMenu;
+
+    int placeHolder;
+
+    float TS, GS, FS;
+
+    // Use this for initialization
+    void Start() {
+        restart.onClick.AddListener(RestartGame);
+
+        options.onClick.AddListener(OptionsMenu);
+
+        gameObject.SetActive(false);
+    }
+
+    // Update is called once per frame
+    void Update() {
+        //Calculate Timescore
+        placeHolder = int.Parse(TimeScore.text);
+        if(placeHolder >= 60) {
+            TimeScore.text = 60.ToString();
+            TS = 60;
+        } else {
+            TimeScore.text = (1000f / placeHolder).ToString();
+            TS = 1000f / placeHolder;
+        }
+        //Set GameScore
+        GameScore.text = Variables.score.ToString();
+        GS = Variables.score;
+        //Set FinalScore
+        FS = TS + GS;
+        FinalScore.text = FS.ToString();
+    }
+
+    void RestartGame() {
+        Variables.score = 0;
+        Variables.keysObtained = 0;
+        Time.timeScale = 1;
+        SceneManager.LoadScene(SceneManager.GetActiveScene().buildIndex);
+    }
+
+    void OptionsMenu() {
+        optMenu.gameObject.SetActive(true);
+    }
+}