upgraded the game

Assets/Scripts/ESCQuit.cs

@@ -0,0 +1,21 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class ESCQuit : MonoBehaviour
+{
+    // Start is called before the first frame update
+    void Start()
+    {
+        
+    }
+
+    // Update is called once per frame
+     void Update ()
+     {
+         if(Input.GetKeyDown(KeyCode.Escape) == true)
+         {
+             Application.Quit();
+         }
+     }
+}

Assets/Scripts/ESCQuit.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 9cf471439c551fd459075afc8510ea03
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Scripts/MenuZoom.cs

@@ -6,7 +6,8 @@ public class MenuZoom : MonoBehaviour
 {
     public Camera cam;
     public GameObject objects;
-    bool firstrun = true;
+    bool flag1 = true;
+    bool flag2 = false;
     // Start is called before the first frame update
     void Start()
     {
@@ -16,14 +17,22 @@ public class MenuZoom : MonoBehaviour
     // Update is called once per frame
     void Update()
     {
-        if (firstrun){
-            firstrun = false;
-            while(cam.fieldOfView > 3f){
-                cam.fieldOfView -= 0.001f;
+        if (flag1){
+            if(cam.orthographicSize > 1f){
+                cam.orthographicSize -= 0.1f;
             }
-            objects.SetActive(true);
-            while(cam.fieldOfView < 5f){
-                cam.fieldOfView += 0.001f;
+            else{
+                flag1 = false;
+                flag2 = true;
+                objects.SetActive(true);
+            }
+        }
+        if(flag2){
+            if(cam.orthographicSize < 5f){
+                cam.orthographicSize += 0.06f;
+            }
+            else{
+                flag2 = false;
             }
         }
     }

Assets/Scripts/Rotation.cs

@@ -10,7 +10,7 @@ public class Rotation : MonoBehaviour
     public bool static_center = true;
     public bool right_rotation = true;
     public bool flipping = false;
-    [Range(0.1f, 8)] public float speed = 1;
+    [Range(1f, 180f)] public float speed = 1;
     [Range(0, (float)Math.PI * 2)] public float flip_angle = 0;
 
     private float angle;