diff --git a/Tetris/.idea/vcs.xml b/Tetris/.idea/vcs.xml
index 6c0b863..d23592a 100644
--- a/Tetris/.idea/vcs.xml
+++ b/Tetris/.idea/vcs.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/../../.." vcs="Git" />
     <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
   </component>
 </project>
\ No newline at end of file
diff --git a/Tetris/app/src/main/AndroidManifest.xml b/Tetris/app/src/main/AndroidManifest.xml
index 902036d..51d0ed1 100644
--- a/Tetris/app/src/main/AndroidManifest.xml
+++ b/Tetris/app/src/main/AndroidManifest.xml
@@ -11,7 +11,36 @@
         android:supportsRtl="true"
         android:theme="@style/Theme.Tetris"
         tools:targetApi="31">
+        <activity
+            android:name="tetrisGame.activity.Menu"
+            android:exported="true"/>
+        <activity
+            android:name="tetrisGame.activity.Game"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
 
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity android:name="activity.Menu" android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+        <activity android:name="activity.Game" android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+        <activity android:name="activity.Option" android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
         <activity android:name="activity.MainActivity" android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
diff --git a/Tetris/app/src/main/java/tetrisGame/activity/MainActivity.kt b/Tetris/app/src/main/java/activity/MainActivity.kt
similarity index 100%
rename from Tetris/app/src/main/java/tetrisGame/activity/MainActivity.kt
rename to Tetris/app/src/main/java/activity/MainActivity.kt
diff --git a/Tetris/app/src/main/java/but/androidstudio/tetris/GameFragment.kt b/Tetris/app/src/main/java/but/androidstudio/tetris/GameFragment.kt
new file mode 100644
index 0000000..1a4232c
--- /dev/null
+++ b/Tetris/app/src/main/java/but/androidstudio/tetris/GameFragment.kt
@@ -0,0 +1,31 @@
+package but.androidstudio.tetris
+
+import android.os.Bundle
+import androidx.fragment.app.Fragment
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import views.ViewsGame
+
+class GameFragment : Fragment() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+    }
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        // Inflate the layout for this fragment
+        return inflater.inflate(R.layout.fragment_game, container, false)
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        val view = view.findViewById<ViewsGame>(R.id.tabGame)
+
+        //To clean the window
+        view.invalidate()
+    }
+}
\ No newline at end of file
diff --git a/Tetris/app/src/main/java/but/androidstudio/tetris/MainFragment.kt b/Tetris/app/src/main/java/but/androidstudio/tetris/MainFragment.kt
index 3660f53..49a0ff1 100644
--- a/Tetris/app/src/main/java/but/androidstudio/tetris/MainFragment.kt
+++ b/Tetris/app/src/main/java/but/androidstudio/tetris/MainFragment.kt
@@ -5,12 +5,9 @@ import androidx.fragment.app.Fragment
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import android.widget.Button
 
 class MainFragment : Fragment() {
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        super.onViewCreated(view, savedInstanceState)
-    }
-
     override fun onCreateView(
         inflater: LayoutInflater, container: ViewGroup?,
         savedInstanceState: Bundle?
@@ -18,4 +15,24 @@ class MainFragment : Fragment() {
         // Inflate the layout for this fragment
         return inflater.inflate(R.layout.fragment_main, container, false)
     }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        val buttonStart: Button = view.findViewById(R.id.buttonStart)
+        buttonStart.setOnClickListener {
+            val fragmentManager = requireActivity().supportFragmentManager
+            fragmentManager.beginTransaction()
+                .replace(R.id.homeLayout, GameFragment())
+                .commit()
+        }
+
+        val buttonOption: Button = view.findViewById(R.id.buttonOption)
+        buttonOption.setOnClickListener {
+            val fragmentManager = requireActivity().supportFragmentManager
+            fragmentManager.beginTransaction()
+                .replace(R.id.homeLayout, OptionFragment())
+                .commit()
+        }
+    }
 }
\ No newline at end of file
diff --git a/Tetris/app/src/main/java/but/androidstudio/tetris/OptionFragment.kt b/Tetris/app/src/main/java/but/androidstudio/tetris/OptionFragment.kt
index d4f6147..d3558d0 100644
--- a/Tetris/app/src/main/java/but/androidstudio/tetris/OptionFragment.kt
+++ b/Tetris/app/src/main/java/but/androidstudio/tetris/OptionFragment.kt
@@ -5,28 +5,13 @@ import androidx.fragment.app.Fragment
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import android.widget.AdapterView
+import android.widget.ArrayAdapter
+import android.widget.Spinner
 
-// TODO: Rename parameter arguments, choose names that match
-// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
-private const val ARG_PARAM1 = "param1"
-private const val ARG_PARAM2 = "param2"
-
-/**
- * A simple [Fragment] subclass.
- * Use the [OptionFragment.newInstance] factory method to
- * create an instance of this fragment.
- */
 class OptionFragment : Fragment() {
-    // TODO: Rename and change types of parameters
-    private var param1: String? = null
-    private var param2: String? = null
-
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        arguments?.let {
-            param1 = it.getString(ARG_PARAM1)
-            param2 = it.getString(ARG_PARAM2)
-        }
     }
 
     override fun onCreateView(
@@ -37,23 +22,24 @@ class OptionFragment : Fragment() {
         return inflater.inflate(R.layout.fragment_option, container, false)
     }
 
-    companion object {
-        /**
-         * Use this factory method to create a new instance of
-         * this fragment using the provided parameters.
-         *
-         * @param param1 Parameter 1.
-         * @param param2 Parameter 2.
-         * @return A new instance of fragment OptionFragment.
-         */
-        // TODO: Rename and change types and number of parameters
-        @JvmStatic
-        fun newInstance(param1: String, param2: String) =
-            OptionFragment().apply {
-                arguments = Bundle().apply {
-                    putString(ARG_PARAM1, param1)
-                    putString(ARG_PARAM2, param2)
-                }
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        val spinnerDifficulty: Spinner = view.findViewById(R.id.spinnerDifficulty)
+        val difficulty = arrayOf("Easy","Medium","Hard")
+
+        /*val adaptateurSpinnerDifficulty = ArrayAdapter(this,android.R.layout.simple_spinner_dropdown_item,difficulty)
+        spinnerDifficulty.adapter = adaptateurSpinnerDifficulty
+
+        spinnerDifficulty.setOnItemSelectedListener(object : AdapterView.OnItemSelectedListener {
+            override fun onItemSelected(parent: AdapterView<*>, view: View?, position: Int, id: Long) {
+                val selectedItem = parent.getItemAtPosition(position).toString()
+                // Faites quelque chose avec l'élément sélectionné
+            }
+
+            override fun onNothingSelected(parent: AdapterView<*>) {
+                // Ne rien faire si aucun élément n'est sélectionné
             }
+        })*/
     }
 }
\ No newline at end of file
diff --git a/Tetris/app/src/main/java/tetrisGame/activity/Game.kt b/Tetris/app/src/main/java/tetrisGame/activity/Game.kt
deleted file mode 100644
index cf702c0..0000000
--- a/Tetris/app/src/main/java/tetrisGame/activity/Game.kt
+++ /dev/null
@@ -1,34 +0,0 @@
-package tetrisGame.activity
-
-import android.graphics.Canvas
-import androidx.appcompat.app.AppCompatActivity
-import android.os.Bundle
-import android.view.View
-import android.widget.ImageView
-import androidx.core.content.ContextCompat
-import but.androidstudio.tetris.R
-import tetrisGame.views.ViewsGame
-import modele.Game
-
-class Game : AppCompatActivity() {
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-
-        setContentView(R.layout.activity_game)
-
-        val view = findViewById<ViewsGame>(R.id.tabGame)
-
-        //Pour nettoyer la vue
-        view.invalidate()
-
-    }
-
-    override fun onResume() {
-        super.onResume()
-        val myGame: modele.Game = Game(10,20)
-        myGame.startGame()
-    }
-
-
-}
\ No newline at end of file
diff --git a/Tetris/app/src/main/java/tetrisGame/activity/Menu.kt b/Tetris/app/src/main/java/tetrisGame/activity/Menu.kt
deleted file mode 100644
index 5621d69..0000000
--- a/Tetris/app/src/main/java/tetrisGame/activity/Menu.kt
+++ /dev/null
@@ -1,34 +0,0 @@
-package tetrisGame.activity
-
-import android.content.Intent
-import androidx.appcompat.app.AppCompatActivity
-import android.os.Bundle
-import android.widget.Button
-import android.widget.TextView
-import but.androidstudio.tetris.R
-
-class Menu : AppCompatActivity() {
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_menu)
-
-        val appName:TextView = findViewById(R.id.appName)
-        appName.setText(R.string.app_name)
-    }
-
-    override fun onResume() {
-        super.onResume()
-
-        val buttonStart:Button = findViewById(R.id.buttonStart)
-        buttonStart.setOnClickListener {
-            val intentStart = Intent(this,Game::class.java)
-            startActivity(intentStart)
-        }
-
-        val buttonOption:Button = findViewById(R.id.buttonOption)
-        buttonOption.setOnClickListener {
-            val intentOption = Intent(this,Option::class.java)
-            startActivity(intentOption)
-        }
-    }
-}
\ No newline at end of file
diff --git a/Tetris/app/src/main/java/tetrisGame/activity/Option.kt b/Tetris/app/src/main/java/tetrisGame/activity/Option.kt
deleted file mode 100644
index 9d74a23..0000000
--- a/Tetris/app/src/main/java/tetrisGame/activity/Option.kt
+++ /dev/null
@@ -1,39 +0,0 @@
-package activity
-
-import android.os.Bundle
-import android.view.View
-import android.widget.AdapterView
-import android.widget.ArrayAdapter
-import android.widget.Spinner
-import androidx.appcompat.app.AppCompatActivity
-import but.androidstudio.tetris.R
-
-class Option : AppCompatActivity() {
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_option)
-    }
-
-    override fun onResume() {
-        super.onResume()
-
-        val spinnerDifficulty:Spinner = findViewById(R.id.spinnerDifficulty)
-        val difficulty = arrayOf("Easy","Medium","Hard")
-
-        val adaptateurSpinnerDifficulty = ArrayAdapter(this,android.R.layout.simple_spinner_dropdown_item,difficulty)
-        spinnerDifficulty.adapter = adaptateurSpinnerDifficulty
-
-        spinnerDifficulty.setOnItemSelectedListener(object : AdapterView.OnItemSelectedListener {
-            override fun onItemSelected(parent: AdapterView<*>, view: View?, position: Int, id: Long) {
-                val selectedItem = parent.getItemAtPosition(position).toString()
-                // Faites quelque chose avec l'élément sélectionné
-            }
-
-            override fun onNothingSelected(parent: AdapterView<*>) {
-                // Ne rien faire si aucun élément n'est sélectionné
-            }
-        })
-
-
-    }
-}
\ No newline at end of file
diff --git a/Tetris/app/src/main/java/tetrisGame/views/ViewsGame.kt b/Tetris/app/src/main/java/views/ViewsGame.kt
similarity index 97%
rename from Tetris/app/src/main/java/tetrisGame/views/ViewsGame.kt
rename to Tetris/app/src/main/java/views/ViewsGame.kt
index 658989e..c7d2549 100644
--- a/Tetris/app/src/main/java/tetrisGame/views/ViewsGame.kt
+++ b/Tetris/app/src/main/java/views/ViewsGame.kt
@@ -1,11 +1,9 @@
-package tetrisGame.views
+package views
 
-import android.annotation.SuppressLint
 import android.content.Context
 import android.graphics.Canvas
 import android.graphics.Color
 import android.graphics.Paint
-import android.graphics.Rect
 import android.util.AttributeSet
 import android.view.View
 
diff --git a/Tetris/app/src/main/res/layout/activity_option.xml b/Tetris/app/src/main/res/layout/activity_option.xml
deleted file mode 100644
index f9433dd..0000000
--- a/Tetris/app/src/main/res/layout/activity_option.xml
+++ /dev/null
@@ -1,33 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context="activity.Menu">
-
-    <LinearLayout
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:orientation="vertical"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintHorizontal_bias="0.5"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintVertical_bias="0.5">
-
-        <TextView
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:text="Difficulty"/>
-
-        <Spinner
-            android:id="@+id/spinnerDifficulty"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:padding="1mm"
-            />
-    </LinearLayout>
-</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/Tetris/app/src/main/res/layout/activity_game.xml b/Tetris/app/src/main/res/layout/fragment_game.xml
similarity index 87%
rename from Tetris/app/src/main/res/layout/activity_game.xml
rename to Tetris/app/src/main/res/layout/fragment_game.xml
index 8f35747..c33fcb0 100644
--- a/Tetris/app/src/main/res/layout/activity_game.xml
+++ b/Tetris/app/src/main/res/layout/fragment_game.xml
@@ -1,11 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context="tetrisGame.activity.Game"
-    android:background="@color/white">
+    tools:context=".GameFragment">
 
     <LinearLayout
         android:layout_width="match_parent"
@@ -19,7 +17,7 @@
             android:layout_width="250dp"
             android:layout_height="450dp">
 
-            <tetrisGame.views.ViewsGame
+            <views.ViewsGame
                 android:id="@+id/tabGame"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content" />
@@ -71,5 +69,4 @@
 
     </LinearLayout>
 
-
-</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
+</FrameLayout>
\ No newline at end of file
diff --git a/Tetris/app/src/main/res/layout/fragment_option.xml b/Tetris/app/src/main/res/layout/fragment_option.xml
index a164ace..8b9a26e 100644
--- a/Tetris/app/src/main/res/layout/fragment_option.xml
+++ b/Tetris/app/src/main/res/layout/fragment_option.xml
@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
-    xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="match_parent"