Ya solo queda que suene la cancion :D

Videojuegos_Proyecto/Assets/MainMenu/Scripts/MainMenu.cs

@@ -24,7 +24,7 @@ public class MainMenu : MonoBehaviour
     }
 
     public void ExtrasScreen() {
-        //Cargar la escena de coleccionables
+        SceneManager.LoadScene("MenuExtras");
     }
 
     public void CreditsScene() {

Videojuegos_Proyecto/Assets/MainMenu/Scripts/MenuExtras.cs

@@ -2,13 +2,20 @@
 using System.Collections.Generic;
 using UnityEngine;
 using TMPro;
+using UnityEngine.UI;
+using UnityEngine.SceneManagement;
 
 public class MenuExtras : MonoBehaviour
 {
     public Coleccionables gameManager;
+
+    public TextMeshProUGUI textNivel1;
+
     public TextMeshProUGUI textInfoNivel1;
     public TextMeshProUGUI textNumColecNivel1;
+
     public GameObject SitioImagenPartituraNivel1;
+    public Button botonReproducirNivel1;
 
     // Start is called before the first frame update
     void Start()
@@ -19,12 +26,21 @@ public class MenuExtras : MonoBehaviour
         //Para el nivel 1
         if (Coleccionables.cConseguidos[0] < Coleccionables.cTotales[0])
         {
+            //Aun no se ha desbloqueado la partitura
+            textInfoNivel1.enabled = true;
+            textNumColecNivel1.enabled = true;
             textNumColecNivel1.text = Coleccionables.cConseguidos[0] + "/" + Coleccionables.cTotales[0];
 
+            SitioImagenPartituraNivel1.SetActive(false);
+            botonReproducirNivel1.gameObject.SetActive(false);
         }
         else {
+            //Ya se ha desbloqueado la partitura
+            textInfoNivel1.enabled = false;
+            textNumColecNivel1.enabled = false;
 
-
+            SitioImagenPartituraNivel1.SetActive(true);
+            botonReproducirNivel1.enabled = true;
         }
 
     }
@@ -34,4 +50,14 @@ public class MenuExtras : MonoBehaviour
     {
         
     }
+
+    public void VolverAlMenuAnterior()
+    {
+        SceneManager.LoadScene("MenuInicial");
+    }
+
+    public void ReproducirCancion() {
+
+    }
+
 }

Videojuegos_Proyecto/Assets/Scenes/MenuInicial.unity

@@ -1385,7 +1385,18 @@ MonoBehaviour:
   m_TargetGraphic: {fileID: 1521503615}
   m_OnClick:
     m_PersistentCalls:
-      m_Calls: []
+      m_Calls:
+      - m_Target: {fileID: 572894596}
+        m_MethodName: ExtrasScreen
+        m_Mode: 1
+        m_Arguments:
+          m_ObjectArgument: {fileID: 0}
+          m_ObjectArgumentAssemblyTypeName: UnityEngine.Object, UnityEngine
+          m_IntArgument: 0
+          m_FloatArgument: 0
+          m_StringArgument: 
+          m_BoolArgument: 0
+        m_CallState: 2
     m_TypeName: UnityEngine.UI.Button+ButtonClickedEvent, UnityEngine.UI, Version=1.0.0.0,
       Culture=neutral, PublicKeyToken=null
 --- !u!114 &1521503615

Videojuegos_Proyecto/Library/CurrentLayout.dwlt

@@ -47,7 +47,7 @@ MonoBehaviour:
   m_MinSize: {x: 683, y: 494}
   m_MaxSize: {x: 14004, y: 14044}
   vertical: 0
-  controlID: 13
+  controlID: 53
 --- !u!114 &3
 MonoBehaviour:
   m_ObjectHideFlags: 52
@@ -218,7 +218,7 @@ MonoBehaviour:
   m_MinSize: {x: 406, y: 494}
   m_MaxSize: {x: 10002, y: 14044}
   vertical: 1
-  controlID: 14
+  controlID: 54
 --- !u!114 &10
 MonoBehaviour:
   m_ObjectHideFlags: 52
@@ -243,7 +243,7 @@ MonoBehaviour:
   m_MinSize: {x: 406, y: 222}
   m_MaxSize: {x: 8006, y: 4022}
   vertical: 0
-  controlID: 15
+  controlID: 55
 --- !u!114 &11
 MonoBehaviour:
   m_ObjectHideFlags: 52
@@ -346,10 +346,10 @@ MonoBehaviour:
   m_LockTracker:
     m_IsLocked: 0
   m_FolderTreeState:
-    scrollPos: {x: 0, y: 0}
-    m_SelectedIDs: aa350000
-    m_LastClickedID: 13738
-    m_ExpandedIDs: 00000000022d0000ee340000e2350000e635000000ca9a3b
+    scrollPos: {x: 0, y: 17}
+    m_SelectedIDs: 9a330000
+    m_LastClickedID: 13210
+    m_ExpandedIDs: 00000000a62a0000b6320000d4330000d833000000ca9a3b
     m_RenameOverlay:
       m_UserAcceptedRename: 0
       m_Name: 
@@ -377,7 +377,7 @@ MonoBehaviour:
     scrollPos: {x: 0, y: 0}
     m_SelectedIDs: 
     m_LastClickedID: 0
-    m_ExpandedIDs: 00000000022d0000
+    m_ExpandedIDs: 00000000a62a0000b6320000d4330000d8330000
     m_RenameOverlay:
       m_UserAcceptedRename: 0
       m_Name: 
@@ -431,7 +431,7 @@ MonoBehaviour:
     m_NewAssetIndexInList: -1
     m_ScrollPosition: {x: 0, y: 0}
     m_GridSize: 64
-  m_DirectoriesAreaWidth: 115
+  m_DirectoriesAreaWidth: 186
 --- !u!114 &14
 MonoBehaviour:
   m_ObjectHideFlags: 52
@@ -497,9 +497,9 @@ MonoBehaviour:
   m_SceneHierarchy:
     m_TreeViewState:
       scrollPos: {x: 0, y: 0}
-      m_SelectedIDs: 804d0000
-      m_LastClickedID: 19840
-      m_ExpandedIDs: b6c0ffffb8caffff66d3ffff62dbffff94dbffffeadbffff42ddffffb8dfffff9ae0ffff0cfaffff204a0000244a0000304a00006e4a0000a64c0000564d00005a4d00006e4d0000ac4d0000
+      m_SelectedIDs: 
+      m_LastClickedID: 0
+      m_ExpandedIDs: 80b8ffff80c2ffff88ccffff94ceffff56f2ffff50fbffff003d0000043d0000103d0000563d0000ae4c0000d64c00002c5c0000305c00003c5c00008c5c0000
       m_RenameOverlay:
         m_UserAcceptedRename: 0
         m_Name: 
@@ -559,9 +559,9 @@ MonoBehaviour:
   m_PlayAudio: 0
   m_AudioPlay: 0
   m_Position:
-    m_Target: {x: 535.283, y: 355.7328, z: -161.14014}
+    m_Target: {x: 612.8882, y: 306.9994, z: -48.75}
     speed: 2
-    m_Value: {x: 535.283, y: 355.7328, z: -161.14014}
+    m_Value: {x: 612.8882, y: 306.9994, z: -48.75}
   m_RenderMode: 0
   m_CameraMode:
     drawMode: 0
@@ -594,9 +594,9 @@ MonoBehaviour:
     speed: 2
     m_Value: {x: 0, y: 0, z: 0, w: 1}
   m_Size:
-    m_Target: 521.232
+    m_Target: 746.1416
     speed: 2
-    m_Value: 521.232
+    m_Value: 746.1416
   m_Ortho:
     m_Target: 1
     speed: 2
@@ -670,7 +670,7 @@ MonoBehaviour:
     m_HSlider: 0
     m_VSlider: 0
     m_IgnoreScrollWheelUntilClicked: 0
-    m_EnableMouseInput: 1
+    m_EnableMouseInput: 0
     m_EnableSliderZoomHorizontal: 0
     m_EnableSliderZoomVertical: 0
     m_UniformScale: 1

Videojuegos_Proyecto/Library/StateCache/SceneView/43dad8-mainStage.json

-{"cameraMode":{"drawMode":0,"name":"Shaded","section":"Shading Mode"},"sceneLighting":true,"audioPlay":false,"sceneViewState":{"showFog":true,"showMaterialUpdate":false,"showSkybox":true,"showFlares":true,"showImageEffects":true,"showParticleSystems":true},"in2DMode":true,"pivot":{"x":535.2830200195313,"y":355.7327880859375,"z":-161.14013671875},"rotation":{"x":0.0,"y":0.0,"z":0.0,"w":1.0},"size":521.2319946289063,"orthographic":true}
\ No newline at end of file
+{"cameraMode":{"drawMode":0,"name":"Shaded","section":"Shading Mode"},"sceneLighting":true,"audioPlay":false,"sceneViewState":{"showFog":true,"showMaterialUpdate":false,"showSkybox":true,"showFlares":true,"showImageEffects":true,"showParticleSystems":true},"in2DMode":true,"pivot":{"x":612.88818359375,"y":306.9993896484375,"z":-48.75},"rotation":{"x":0.0,"y":0.0,"z":0.0,"w":1.0},"size":746.1416015625,"orthographic":true}
\ No newline at end of file

Videojuegos_Proyecto/Library/shadercompiler-UnityShaderCompiler.exe0.log

-Base path: C:/Program Files/Unity/Editor/Data
+Base path: C:/Program Files/Unity/Hub/Editor/2019.1.11f1/Editor/Data
 Cmd: initializeCompiler

Videojuegos_Proyecto/ProjectSettings/EditorBuildSettings.asset

@@ -14,4 +14,7 @@ EditorBuildSettings:
   - enabled: 1
     path: Assets/Scenes/SampleScene.unity
     guid: 2cda990e2423bbf4892e6590ba056729
+  - enabled: 1
+    path: Assets/Scenes/MenuExtras.unity
+    guid: 3dfab5202609ad94c944cde7669b8bd2
   m_configObjects: {}