diff --git a/source/define_buttons.cpp b/source/define_buttons.cpp
index 26d6cb7..c620b00 100644
--- a/source/define_buttons.cpp
+++ b/source/define_buttons.cpp
@@ -7,8 +7,8 @@
 #include "utils.h"   // for op_controller_t, options_t, param_t, paramGame_t
 
 // Constructor
-DefineButtons::DefineButtons(Text *text)
-    : text(text)
+DefineButtons::DefineButtons(std::unique_ptr<Text> text)
+    : text(std::move(text))
 {
     // Copia punteros a los objetos
     input = Input::get();
@@ -54,14 +54,6 @@ DefineButtons::DefineButtons(Text *text)
     }
 }
 
-// Actualiza las variables del objeto
-void DefineButtons::update()
-{
-    if (enabled)
-    {
-    }
-}
-
 // Dibuja el objeto en pantalla
 void DefineButtons::render()
 {
diff --git a/source/define_buttons.h b/source/define_buttons.h
index 0312481..6effa30 100644
--- a/source/define_buttons.h
+++ b/source/define_buttons.h
@@ -5,7 +5,8 @@
 #include <string>                     // for string, basic_string
 #include <vector>                     // for vector
 #include "input.h"                    // for inputs_e
-class Text;
+#include "text.h"
+#include <memory>
 
 struct db_button_t
 {
@@ -20,7 +21,7 @@ class DefineButtons
 private:
     // Objetos
     Input *input; // Objeto pata gestionar la entrada
-    Text *text;   // Objeto para escribir texto
+    std::shared_ptr<Text> text;   // Objeto para escribir texto
 
     // Variables
     bool enabled;                             // Indica si el objeto está habilitado
@@ -45,14 +46,11 @@ private:
 
 public:
     // Constructor
-    DefineButtons(Text *text);
+    DefineButtons(std::unique_ptr<Text> text);
 
     // Destructor
     ~DefineButtons() = default;
 
-    // Actualiza las variables del objeto
-    void update();
-
     // Dibuja el objeto en pantalla
     void render();
 
diff --git a/source/explosions.cpp b/source/explosions.cpp
index de91d7e..843a1c8 100644
--- a/source/explosions.cpp
+++ b/source/explosions.cpp
@@ -41,7 +41,7 @@ void Explosions::addTexture(int size, std::shared_ptr<Texture> texture, std::vec
 {
     explosion_texture_t temp;
     temp.size = size;
-    temp.texture = texture.get();
+    temp.texture = texture;
     temp.animation = animation;
     textures.push_back(temp);
 }
diff --git a/source/explosions.h b/source/explosions.h
index 3df5121..290d8f3 100644
--- a/source/explosions.h
+++ b/source/explosions.h
@@ -8,7 +8,7 @@
 
 struct explosion_texture_t
 {
-    Texture *texture;                    // Textura para la explosión
+    std::shared_ptr<Texture>texture;                    // Textura para la explosión
     std::vector<std::string> *animation; // Animación para la textura
     int size;                            // Tamaño de la explosión
 };
diff --git a/source/game_logo.cpp b/source/game_logo.cpp
index 061fb71..e63ced6 100644
--- a/source/game_logo.cpp
+++ b/source/game_logo.cpp
@@ -16,18 +16,18 @@ GameLogo::GameLogo(int x, int y)
     : x(x), y(y)
 {
     // Crea los objetos
-    dustTexture = std::make_unique<Texture>(Screen::get()->getRenderer(), Asset::get()->get("title_dust.png"));
-    coffeeTexture = std::make_unique<Texture>(Screen::get()->getRenderer(), Asset::get()->get("title_coffee.png"));
-    crisisTexture = std::make_unique<Texture>(Screen::get()->getRenderer(), Asset::get()->get("title_crisis.png"));
-    arcadeEditionTexture = std::make_unique<Texture>(Screen::get()->getRenderer(), Asset::get()->get("title_arcade_edition.png"));
+    dustTexture = std::make_shared<Texture>(Screen::get()->getRenderer(), Asset::get()->get("title_dust.png"));
+    coffeeTexture = std::make_shared<Texture>(Screen::get()->getRenderer(), Asset::get()->get("title_coffee.png"));
+    crisisTexture = std::make_shared<Texture>(Screen::get()->getRenderer(), Asset::get()->get("title_crisis.png"));
+    arcadeEditionTexture = std::make_shared<Texture>(Screen::get()->getRenderer(), Asset::get()->get("title_arcade_edition.png"));
 
-    coffeeSprite = std::make_unique<SmartSprite>(coffeeTexture.get());
-    crisisSprite = std::make_unique<SmartSprite>(crisisTexture.get());
+    coffeeSprite = std::make_unique<SmartSprite>(coffeeTexture);
+    crisisSprite = std::make_unique<SmartSprite>(crisisTexture);
 
-    arcadeEditionSprite = std::make_unique<Sprite>((param.game.width - arcadeEditionTexture->getWidth()) / 2, param.title.arcadeEditionPosition, arcadeEditionTexture->getWidth(), arcadeEditionTexture->getHeight(), arcadeEditionTexture.get());
+    arcadeEditionSprite = std::make_unique<Sprite>((param.game.width - arcadeEditionTexture->getWidth()) / 2, param.title.arcadeEditionPosition, arcadeEditionTexture->getWidth(), arcadeEditionTexture->getHeight(), arcadeEditionTexture);
 
-    dustLSprite = std::make_unique<AnimatedSprite>(dustTexture.get(), Asset::get()->get("title_dust.ani"));
-    dustRSprite = std::make_unique<AnimatedSprite>(dustTexture.get(), Asset::get()->get("title_dust.ani"));
+    dustLSprite = std::make_unique<AnimatedSprite>(dustTexture, Asset::get()->get("title_dust.ani"));
+    dustRSprite = std::make_unique<AnimatedSprite>(dustTexture, Asset::get()->get("title_dust.ani"));
 
     // Sonidos
     crashSound = JA_LoadSound(Asset::get()->get("title.wav").c_str());
diff --git a/source/game_logo.h b/source/game_logo.h
index 71029e2..f721d77 100644
--- a/source/game_logo.h
+++ b/source/game_logo.h
@@ -15,10 +15,10 @@ class GameLogo
 {
 private:
     // Objetos y punteros
-    std::unique_ptr<Texture> dustTexture;          // Textura con los graficos del polvo
-    std::unique_ptr<Texture> coffeeTexture;        // Textura con los graficos de la palabra "COFFEE"
-    std::unique_ptr<Texture> crisisTexture;        // Textura con los graficos de la plabra "CRISIS"
-    std::unique_ptr<Texture> arcadeEditionTexture; // Textura con los graficos de "Arcade Edition"
+    std::shared_ptr<Texture> dustTexture;          // Textura con los graficos del polvo
+    std::shared_ptr<Texture> coffeeTexture;        // Textura con los graficos de la palabra "COFFEE"
+    std::shared_ptr<Texture> crisisTexture;        // Textura con los graficos de la plabra "CRISIS"
+    std::shared_ptr<Texture> arcadeEditionTexture; // Textura con los graficos de "Arcade Edition"
 
     std::unique_ptr<AnimatedSprite> dustLSprite; // Sprite con la el polvo que aparece al colisionar el texto de la pantalla de titulo
     std::unique_ptr<AnimatedSprite> dustRSprite; // Sprite con la el polvo que aparece al colisionar el texto de la pantalla de titulo
diff --git a/source/instructions.cpp b/source/instructions.cpp
index 8e4bfac..5a7fb83 100644
--- a/source/instructions.cpp
+++ b/source/instructions.cpp
@@ -80,25 +80,25 @@ Instructions::~Instructions()
 void Instructions::iniSprites()
 {
 	// Inicializa las texturas
-	auto item1 = std::make_unique<Texture>(renderer, Asset::get()->get("item_points1_disk.png"));
-	itemTextures.push_back(std::move(item1));
+	auto item1 = std::make_shared<Texture>(renderer, Asset::get()->get("item_points1_disk.png"));
+	itemTextures.push_back(item1);
 
-	auto item2 = std::make_unique<Texture>(renderer, Asset::get()->get("item_points2_gavina.png"));
-	itemTextures.push_back(std::move(item2));
+	auto item2 = std::make_shared<Texture>(renderer, Asset::get()->get("item_points2_gavina.png"));
+	itemTextures.push_back(item2);
 
-	auto item3 = std::make_unique<Texture>(renderer, Asset::get()->get("item_points3_pacmar.png"));
-	itemTextures.push_back(std::move(item3));
+	auto item3 = std::make_shared<Texture>(renderer, Asset::get()->get("item_points3_pacmar.png"));
+	itemTextures.push_back(item3);
 
-	auto item4 = std::make_unique<Texture>(renderer, Asset::get()->get("item_clock.png"));
-	itemTextures.push_back(std::move(item4));
+	auto item4 = std::make_shared<Texture>(renderer, Asset::get()->get("item_clock.png"));
+	itemTextures.push_back(item4);
 
-	auto item5 = std::make_unique<Texture>(renderer, Asset::get()->get("item_coffee.png"));
-	itemTextures.push_back(std::move(item5));
+	auto item5 = std::make_shared<Texture>(renderer, Asset::get()->get("item_coffee.png"));
+	itemTextures.push_back(item5);
 
 	// Inicializa los sprites
 	for (int i = 0; i < (int)itemTextures.size(); ++i)
 	{
-		auto sprite = std::make_unique<Sprite>(0, 0, param.game.itemSize, param.game.itemSize, itemTextures[i].get());
+		auto sprite = std::make_unique<Sprite>(0, 0, param.game.itemSize, param.game.itemSize, itemTextures[i]);
 		sprite->setPos((SDL_Point){spritePos.x, spritePos.y + ((param.game.itemSize + itemSpace) * i)});
 		sprites.push_back(std::move(sprite));
 	}
diff --git a/source/instructions.h b/source/instructions.h
index 049a13a..2f0c885 100644
--- a/source/instructions.h
+++ b/source/instructions.h
@@ -31,7 +31,7 @@ class Instructions
 {
 private:
 	// Objetos y punteros
-	std::vector<std::unique_ptr<Texture>> itemTextures; // Vector con las texturas de los items
+	std::vector<std::shared_ptr<Texture>> itemTextures; // Vector con las texturas de los items
 	std::vector<std::unique_ptr<Sprite>> sprites;		// Vector con los sprites de los items
 	std::unique_ptr<SDL_Event> eventHandler;			// Manejador de eventos
 	std::unique_ptr<Text> text;							// Objeto para escribir texto
diff --git a/source/logo.cpp b/source/logo.cpp
index 19345c4..3027474 100644
--- a/source/logo.cpp
+++ b/source/logo.cpp
@@ -20,10 +20,9 @@ Logo::Logo()
 	SDL_Renderer *renderer = Screen::get()->getRenderer();
 
 	// Reserva memoria para los punteros
-	eventHandler = std::make_unique<SDL_Event>();
-	jailTexture = std::make_unique<Texture>(renderer, Asset::get()->get("logo_jailgames.png"));
-	sinceTexture = std::make_unique<Texture>(renderer, Asset::get()->get("logo_since_1998.png"));
-	sinceSprite = std::make_unique<Sprite>((param.game.width - sinceTexture->getWidth()) / 2, 83 + jailTexture->getHeight() + 5, sinceTexture->getWidth(), sinceTexture->getHeight(), sinceTexture.get());
+	jailTexture = std::make_shared<Texture>(renderer, Asset::get()->get("logo_jailgames.png"));
+	sinceTexture = std::make_shared<Texture>(renderer, Asset::get()->get("logo_since_1998.png"));
+	sinceSprite = std::make_unique<Sprite>((param.game.width - sinceTexture->getWidth()) / 2, 83 + jailTexture->getHeight() + 5, sinceTexture->getWidth(), sinceTexture->getHeight(), sinceTexture);
 
 	// Inicializa variables
 	counter = 0;
@@ -45,7 +44,7 @@ Logo::Logo()
 	// Crea los sprites de cada linea
 	for (int i = 0; i < jailTexture->getHeight(); ++i)
 	{
-		auto temp = std::make_unique<Sprite>(0, i, jailTexture->getWidth(), 1, jailTexture.get());
+		auto temp = std::make_unique<Sprite>(0, i, jailTexture->getWidth(), 1, jailTexture);
 		temp->setSpriteClip(0, i, jailTexture->getWidth(), 1);
 		const int posX = (i % 2 == 0) ? param.game.width + (i * 3) : -jailTexture->getWidth() - (i * 3);
 		temp->setPosX(posX);
@@ -74,20 +73,21 @@ void Logo::reloadTextures()
 // Comprueba el manejador de eventos
 void Logo::checkEvents()
 {
+	SDL_Event event;
 	// Comprueba los eventos que hay en la cola
-	while (SDL_PollEvent(eventHandler.get()) != 0)
+	while (SDL_PollEvent(&event))
 	{
 		// Evento de salida de la aplicación
-		if (eventHandler->type == SDL_QUIT)
+		if (event.type == SDL_QUIT)
 		{
 			section::name = section::NAME_QUIT;
 			break;
 		}
 
 		// Comprueba si se ha cambiado el tamaño de la ventana
-		else if (eventHandler->type == SDL_WINDOWEVENT)
+		else if (event.type == SDL_WINDOWEVENT)
 		{
-			if (eventHandler->window.event == SDL_WINDOWEVENT_SIZE_CHANGED)
+			if (event.window.event == SDL_WINDOWEVENT_SIZE_CHANGED)
 			{
 				reloadTextures();
 			}
diff --git a/source/logo.h b/source/logo.h
index 469d260..8d38f4b 100644
--- a/source/logo.h
+++ b/source/logo.h
@@ -22,10 +22,9 @@ class Logo
 {
 private:
 	// Objetos y punteros
-	std::unique_ptr<SDL_Event> eventHandler;		 // Manejador de eventos
-	std::unique_ptr<Texture> sinceTexture;			 // Textura con los graficos "Since 1998"
+	std::shared_ptr<Texture> sinceTexture;			 // Textura con los graficos "Since 1998"
 	std::unique_ptr<Sprite> sinceSprite;			 // Sprite para manejar la sinceTexture
-	std::unique_ptr<Texture> jailTexture;			 // Textura con los graficos "JAILGAMES"
+	std::shared_ptr<Texture> jailTexture;			 // Textura con los graficos "JAILGAMES"
 	std::vector<std::unique_ptr<Sprite>> jailSprite; // Vector con los sprites de cada linea que forman el bitmap JAILGAMES
 
 	// Variables
diff --git a/source/on_screen_help.cpp b/source/on_screen_help.cpp
index 5347d6c..04bb64e 100644
--- a/source/on_screen_help.cpp
+++ b/source/on_screen_help.cpp
@@ -92,17 +92,17 @@ void OnScreenHelp::render()
 void OnScreenHelp::fillTexture()
 {
     // Cambia el renderizador a la textura
-    SDL_Texture *temp = SDL_GetRenderTarget(Screen::get()->getRenderer());
+    auto *temp = SDL_GetRenderTarget(Screen::get()->getRenderer());
     SDL_SetRenderTarget(Screen::get()->getRenderer(), texture);
 
     // Crea el objeto para el texto
     auto text = std::make_unique<Text>(Asset::get()->get("8bithud.png"), Asset::get()->get("8bithud.txt"), Screen::get()->getRenderer());
 
     // Crea la textura con los gráficos
-    auto controllersTexture = std::make_unique<Texture>(Screen::get()->getRenderer(), Asset::get()->get("controllers.png"));
+    auto controllersTexture = std::make_shared<Texture>(Screen::get()->getRenderer(), Asset::get()->get("controllers.png"));
 
     // Crea el sprite para dibujar los gráficos
-    auto sprite = std::make_unique<Sprite>((SDL_Rect){0, 0, 16, 16}, controllersTexture.get());
+    auto sprite = std::make_unique<Sprite>((SDL_Rect){0, 0, 16, 16}, controllersTexture);
 
     // Borra la textura
     SDL_SetRenderDrawColor(Screen::get()->getRenderer(), 0, 0, 0, 0);
diff --git a/source/on_screen_help.h b/source/on_screen_help.h
index cd900e2..c1135ec 100644
--- a/source/on_screen_help.h
+++ b/source/on_screen_help.h
@@ -3,8 +3,9 @@
 #include <SDL2/SDL_rect.h>   // for SDL_Rect
 #include <SDL2/SDL_render.h> // for SDL_Texture
 #include <vector>            // for vector
-class Sprite;                // lines 10-10
-class Text;
+#include <memory>
+#include "sprite.h"                // lines 10-10
+#include "text.h"
 
 enum class OnScreenHelpStatus
 {
diff --git a/source/screen.cpp b/source/screen.cpp
index efbd726..e70cd30 100644
--- a/source/screen.cpp
+++ b/source/screen.cpp
@@ -232,15 +232,13 @@ void Screen::setVideoMode(ScreenVideoMode videoMode)
     // Reinicia los shaders
     if (options.video.shaders)
     {
+#ifdef SHADERS
         std::ifstream f(asset->get("crtpi.glsl").c_str());
         std::string source((std::istreambuf_iterator<char>(f)), std::istreambuf_iterator<char>());
 
         shader::init(window, shaderCanvas, source.c_str());
+#endif
     }
-
-    // Actualiza variables
-    // shakeEffect.originalPos = srcrect.x;
-    // shakeEffect.originalWidth = srcrect.w;
 }
 
 // Camibia entre pantalla completa y ventana
diff --git a/source/text.cpp b/source/text.cpp
index 8976e73..951e718 100644
--- a/source/text.cpp
+++ b/source/text.cpp
@@ -95,8 +95,8 @@ Text::Text(std::string bitmapFile, std::string textFile, SDL_Renderer *renderer)
 	}
 
 	// Crea los objetos
-	texture = std::make_unique<Texture>(renderer, bitmapFile);
-	sprite = std::make_unique<Sprite>((SDL_Rect){0, 0, boxWidth, boxHeight}, texture.get());
+	texture = std::make_shared<Texture>(renderer, bitmapFile);
+	sprite = std::make_unique<Sprite>((SDL_Rect){0, 0, boxWidth, boxHeight}, texture);
 
 	// Inicializa variables
 	fixedWidth = false;
diff --git a/source/text.h b/source/text.h
index 10dffbe..8dfd949 100644
--- a/source/text.h
+++ b/source/text.h
@@ -34,7 +34,7 @@ class Text
 private:
 	// Objetos y punteros
 	std::unique_ptr<Sprite> sprite;	  // Objeto con los graficos para el texto
-	std::unique_ptr<Texture> texture; // Textura con los bitmaps del texto
+	std::shared_ptr<Texture> texture; // Textura con los bitmaps del texto
 
 	// Variables
 	int boxWidth;		  // Anchura de la caja de cada caracter en el png
diff --git a/source/title.cpp b/source/title.cpp
index e2eca2e..d5dc791 100644
--- a/source/title.cpp
+++ b/source/title.cpp
@@ -35,15 +35,15 @@ Title::Title(JA_Music_t *music)
 	text1->setPalette(1);
 	text2 = std::make_unique<Text>(asset->get("8bithud.png"), asset->get("8bithud.txt"), renderer);
 
-	miniLogoTexture = std::make_unique<Texture>(renderer, asset->get("logo_jailgames_mini.png"));
-	miniLogoSprite = std::make_unique<Sprite>(param.game.gameArea.centerX - miniLogoTexture->getWidth() / 2, 0, miniLogoTexture->getWidth(), miniLogoTexture->getHeight(), miniLogoTexture.get());
+	miniLogoTexture = std::make_shared<Texture>(renderer, asset->get("logo_jailgames_mini.png"));
+	miniLogoSprite = std::make_unique<Sprite>(param.game.gameArea.centerX - miniLogoTexture->getWidth() / 2, 0, miniLogoTexture->getWidth(), miniLogoTexture->getHeight(), miniLogoTexture);
 
 	tiledbg = std::make_unique<Tiledbg>(asset->get("title_bg_tile.png"), (SDL_Rect){0, 0, param.game.width, param.game.height}, TILED_MODE_RANDOM);
 
 	gameLogo = std::make_unique<GameLogo>(param.game.gameArea.centerX, param.title.titleCCPosition);
 	gameLogo->enable();
 
-	defineButtons = std::make_unique<DefineButtons>(text2.get());
+	defineButtons = std::make_unique<DefineButtons>(std::move(text2));
 
 	// Inicializa los valores
 	init();
@@ -78,9 +78,6 @@ void Title::update()
 		// Actualiza el objeto screen
 		screen->update();
 
-		// Actualiza el objeto 'defineButtons'
-		defineButtons->update();
-
 		// Comprueba el fade y si se ha acabado
 		fade->update();
 		if (fade->hasEnded())
diff --git a/source/title.h b/source/title.h
index 8c24691..f3ca992 100644
--- a/source/title.h
+++ b/source/title.h
@@ -52,7 +52,7 @@ private:
 	std::unique_ptr<Tiledbg> tiledbg;			  // Objeto para dibujar el mosaico animado de fondo
 	std::unique_ptr<GameLogo> gameLogo;			  // Objeto para dibujar el logo con el título del juego
 	std::unique_ptr<DefineButtons> defineButtons; // Objeto para definir los botones del joystic
-	std::unique_ptr<Texture> miniLogoTexture;	  // Textura con el logo de JailGames mini
+	std::shared_ptr<Texture> miniLogoTexture;	  // Textura con el logo de JailGames mini
 	std::unique_ptr<Sprite> miniLogoSprite;		  // Sprite con el logo de JailGames mini
 
 	std::unique_ptr<Text> text1; // Objeto de texto para poder escribir textos en pantalla