diff --git a/fernandomartin.tap b/fernandomartin.tap
new file mode 100644
index 0000000..4230123
Binary files /dev/null and b/fernandomartin.tap differ
diff --git a/main.cpp b/main.cpp
index 819d97d..50ed0e7 100644
--- a/main.cpp
+++ b/main.cpp
@@ -15,6 +15,40 @@ uint8_t memory[65536];
 uint32_t time = 0;
 uint32_t t_states = 0;
 
+namespace actions
+{
+    void exitMenu()
+    {
+        const uint8_t dt = z80::step();
+        z80debug::cont();
+        zxscreen::refresh(dt);
+    }
+
+    int berserk(int value)
+    {
+        zx_tape::setberserk(!zx_tape::getberserk());
+        return zx_tape::getberserk();
+    }
+
+    int decZoom(int value)
+    {
+        zxscreen::decZoom();
+        return 0;
+    }
+
+    int incZoom(int value)
+    {
+        zxscreen::incZoom();
+        return 0;
+    }
+
+    int fullscreen(int value)
+    {
+        zxscreen::toggleFullscreen();
+        return zxscreen::getFullscreen();
+    }
+}
+
 int main(int argc, char *argv[])
 {
     FILE* f = fopen("48.rom", "rb");
@@ -29,14 +63,22 @@ int main(int argc, char *argv[])
     zxscreen::init();
 
     ui::menu::init();
+    ui::menu::setexitcallback(actions::exitMenu);
+
     int menu = ui::menu::addsubmenu("FILE");
     ui::menu::addoption(menu, "LOAD TAPE", nullptr);
     ui::menu::addoption(menu, "SAVE TAPE", nullptr);
     ui::menu::addseparator(menu);
     ui::menu::addoption(menu, "LOAD STATE", nullptr);
     ui::menu::addoption(menu, "SAVE STATE", nullptr);
-    menu = ui::menu::addsubmenu("OPTIONS");
-    ui::menu::addbooloption(menu, "BERSERK MODE", false, nullptr);
+
+    menu = ui::menu::addsubmenu("TAPE");
+    ui::menu::addbooloption(menu, "BERSERK MODE", zx_tape::getberserk(), actions::berserk);
+
+    menu = ui::menu::addsubmenu("SCREEN");
+    ui::menu::addoption(menu, "DEC ZOOM", actions::decZoom);
+    ui::menu::addoption(menu, "INC ZOOM", actions::incZoom);
+    ui::menu::addbooloption(menu, "FULLSCREEN", zxscreen::getFullscreen(), actions::fullscreen);
 
     zx_ula::sound_init();
 
@@ -55,6 +97,7 @@ int main(int argc, char *argv[])
         while (SDL_PollEvent(&e))
         {
             if (e.type == SDL_QUIT) { should_exit=true; break; }
+            if (e.type == SDL_MOUSEBUTTONUP && e.button.button==1) ui::setClicked(true);
             if ((e.type==SDL_WINDOWEVENT) && (e.window.event==SDL_WINDOWEVENT_CLOSE)) {
                 should_exit=true; break;
             }
@@ -115,7 +158,6 @@ int main(int argc, char *argv[])
                         z80debug::stop();
                         zxscreen::redraw();
                     } else if (e.key.keysym.scancode==SDL_SCANCODE_F12) {
-                        zx_tape::go_berserk();
                         zx_tape::play();
                     } else if (e.key.keysym.scancode==SDL_SCANCODE_F11) {
                         zx_tape::rewind();
@@ -134,7 +176,7 @@ int main(int argc, char *argv[])
                 t_states += dt;
                 zx_tape::update(dt);
                 
-                while (zx_tape::berserk())
+                while (zx_tape::getplaying() && zx_tape::getberserk())
                 {
                     zx_tape::update(z80::step());
                 }
@@ -159,6 +201,7 @@ int main(int argc, char *argv[])
             ui::menu::show();
             zxscreen::present();
         }
+        ui::setClicked(false);
     }
 
     return 0;
diff --git a/ui.cpp b/ui.cpp
index 323c462..4e695ff 100644
--- a/ui.cpp
+++ b/ui.cpp
@@ -29,6 +29,8 @@ namespace ui
     uint8_t offset_x = 0;
     uint8_t offset_y = 0;
 
+    bool clicked = false;
+
     void init()
     {
         surf = SDL_LoadBMP("font.bmp");
@@ -79,4 +81,14 @@ namespace ui
         for (int i=0; i<strlen(text);++i) if (text[i]!=32) printchar(x+i, y, text[i]);
     }
 
+    void setClicked(const bool value)
+    {
+        clicked = value;
+    }
+
+    const bool getClicked()
+    {
+        return clicked;
+    }
+
 }
diff --git a/ui.h b/ui.h
index abd4820..23fb00a 100644
--- a/ui.h
+++ b/ui.h
@@ -31,4 +31,6 @@ namespace ui
     void printchar(int x, int y, char chr, uint8_t color=255);
     void printtxt(int x, int y, const char *text, uint8_t color);
 
+    void setClicked(const bool value);
+    const bool getClicked();
 }
diff --git a/ui_menu.cpp b/ui_menu.cpp
index 9b7a2eb..6d64194 100644
--- a/ui_menu.cpp
+++ b/ui_menu.cpp
@@ -27,6 +27,7 @@ namespace ui
             std::vector<option_t> options;
         };
 
+        void(*exit_callback)(void) = nullptr;
         std::vector<menu_t> menus;
         int visible_menu = -1;
         int menu_x = 0;
@@ -41,10 +42,11 @@ namespace ui
             int mx, my;
             Uint32 mb = SDL_GetMouseState(&mx, &my);
             mx=mx/CHR_W; my=my/CHR_H;
-            ui::printrect(0, 0, 59, 1, COLOR_BLACK);
+            int w;
+            ui::printrect(0, 0, 320, 1, COLOR_BLACK);
             int opt_pos=1;
             int index=0;
-            for (auto menu : menus)
+            for (auto &menu : menus)
             {
                 const int text_size = (menu.label.size()+2);
                 uint8_t text_color = COLOR_WHITE;
@@ -62,10 +64,10 @@ namespace ui
             if (visible_menu!=-1)
             {
                 opt_pos=2;
-                menu_t m = menus[visible_menu];
+                menu_t &m = menus[visible_menu];
                 ui::printrect(menu_x, 1, 22, m.options.size()+2, COLOR_BLACK);
                 ui::box(menu_x, 1, 22, m.options.size()+2, COLOR_WHITE);
-                for (auto option : m.options)
+                for (auto &option : m.options)
                 {
                     if (option.type!=OPTION_TYPE_SEPARATOR)
                     {
@@ -75,6 +77,12 @@ namespace ui
                         {
                             ui::printrect(menu_x+1, opt_pos, 20, 1, COLOR_DARK_BLUE);
                             text_color = COLOR_WHITE;
+                            if (ui::getClicked())
+                            {
+                                if (option.callback) option.value = option.callback(option.value);
+                                if (exit_callback) exit_callback();
+                                return;
+                            }
                         }
                         ui::printtxt(menu_x+1, opt_pos, option.label.c_str(), text_color);
 
@@ -89,6 +97,11 @@ namespace ui
             }
         }
 
+        void setexitcallback(void(*callback)(void))
+        {
+            exit_callback = callback;
+        }
+
         const int addsubmenu(const char *label)
         {
             menu_t m;
diff --git a/ui_menu.h b/ui_menu.h
index e2001ed..0c849ee 100644
--- a/ui_menu.h
+++ b/ui_menu.h
@@ -6,6 +6,7 @@ namespace ui
     {
         void init();
         void show();
+        void setexitcallback(void(*callback)(void));
         const int addsubmenu(const char *label);
         void addoption(int menu, const char *label, int(*callback)(int));
         void addbooloption(int menu, const char *label, bool default_value, int(*callback)(int));
diff --git a/zx_screen.cpp b/zx_screen.cpp
index 941d3f4..6963736 100644
--- a/zx_screen.cpp
+++ b/zx_screen.cpp
@@ -175,7 +175,7 @@ namespace zxscreen
 
     void redraw(const bool present)
     {
-        if (zx_tape::berserk()) return;
+        if (zx_tape::getplaying() && zx_tape::getberserk()) return;
 
         Uint32* pixels;
         int pitch;
@@ -192,7 +192,17 @@ namespace zxscreen
         // Pintem la textura a pantalla
         SDL_RenderCopy(ren, tex, NULL, &dest_rect);
 
-        if (present) SDL_RenderPresent(ren);
+        if (present)
+            SDL_RenderPresent(ren);
+        else
+        {
+            SDL_SetRenderDrawBlendMode(ren, SDL_BLENDMODE_BLEND);
+            SDL_SetRenderDrawColor(ren, 0, 0, 0, 128);
+            SDL_Rect rect {0,0,352*zoom,296*zoom};
+            if (fullscreen) SDL_GetWindowSize(win, &rect.w, &rect.h);
+            SDL_RenderFillRect(ren, &rect);
+        }
+
     }
 
     void present()
@@ -229,6 +239,11 @@ namespace zxscreen
         reinit();
     }
 
+    const bool getFullscreen()
+    {
+        return fullscreen;
+    }
+
     SDL_Renderer *getrenderer()
     {
         return ren;
diff --git a/zx_screen.h b/zx_screen.h
index 2b22d80..9967312 100644
--- a/zx_screen.h
+++ b/zx_screen.h
@@ -12,6 +12,7 @@ namespace zxscreen
     void incZoom();
     void decZoom();
     void toggleFullscreen();
+    const bool getFullscreen();
 
     SDL_Renderer *getrenderer();
 }
diff --git a/zx_tape.cpp b/zx_tape.cpp
index 5c0cf63..0b842e2 100644
--- a/zx_tape.cpp
+++ b/zx_tape.cpp
@@ -219,7 +219,7 @@ namespace zx_tape
         zx_ula::set_ear(pulse_level);
     }
 
-    void go_berserk() { berserk_mode = true; }
-    const bool berserk() { return berserk_mode; }
-
+    void setberserk(const bool value) { berserk_mode = value; }
+    const bool getberserk() { return berserk_mode; }
+    const bool getplaying() { return playing; }
 }
diff --git a/zx_tape.h b/zx_tape.h
index ed40e4b..f62629f 100644
--- a/zx_tape.h
+++ b/zx_tape.h
@@ -8,6 +8,7 @@ namespace zx_tape
     void stop();
     void rewind();
     void update(const uint8_t dt);
-    void go_berserk();
-    const bool berserk();
+    void setberserk(const bool value);
+    const bool getberserk();
+    const bool getplaying();
 }