diff --git a/snes-frontend/src/emu_state/debug_options.rs b/snes-frontend/src/emu_state/debug_options.rs
new file mode 100644
index 0000000..c11c36f
--- /dev/null
+++ b/snes-frontend/src/emu_state/debug_options.rs
@@ -0,0 +1,13 @@
+pub struct DebugOptions {
+    pub enable_debugging: bool,
+    pub show_debug_options_window: bool,
+}
+
+impl DebugOptions {
+    pub fn new() -> Self {
+        Self {
+            enable_debugging: true,
+            show_debug_options_window: true,
+        }
+    }
+}
\ No newline at end of file
diff --git a/snes-frontend/src/emu_state/mod.rs b/snes-frontend/src/emu_state/mod.rs
new file mode 100644
index 0000000..b73743f
--- /dev/null
+++ b/snes-frontend/src/emu_state/mod.rs
@@ -0,0 +1,3 @@
+pub mod debug_options;
+pub mod state;
+pub use state::AppState;
\ No newline at end of file
diff --git a/snes-frontend/src/emu_state/state.rs b/snes-frontend/src/emu_state/state.rs
new file mode 100644
index 0000000..64f0382
--- /dev/null
+++ b/snes-frontend/src/emu_state/state.rs
@@ -0,0 +1,21 @@
+use crate::emu_state::debug_options::DebugOptions;
+
+
+pub struct AppState {
+    pub debug_options: DebugOptions,
+}
+
+impl AppState {
+    pub fn new() -> Self {
+        Self {
+            debug_options: DebugOptions::new(),
+        }
+    }
+}
+
+
+impl Default for AppState {
+    fn default() -> Self {
+        Self::new()
+    }
+}
\ No newline at end of file
diff --git a/snes-frontend/src/emu_ui/debug/debug.rs b/snes-frontend/src/emu_ui/debug/debug.rs
new file mode 100644
index 0000000..d71708a
--- /dev/null
+++ b/snes-frontend/src/emu_ui/debug/debug.rs
@@ -0,0 +1,15 @@
+use eframe::egui;
+
+use crate::emu_state::AppState;
+
+
+pub fn build_debug_window(ctx: &egui::Context, app_state: &mut AppState) {
+    egui::Window::new("Debug")
+        .open(&mut app_state.debug_options.show_debug_options_window)
+        .show(ctx, |ui| {
+            ui.checkbox(
+                &mut app_state.debug_options.enable_debugging,
+                "Enable debugging",
+            );
+        });
+}
\ No newline at end of file
diff --git a/snes-frontend/src/emu_ui/debug/mod.rs b/snes-frontend/src/emu_ui/debug/mod.rs
new file mode 100644
index 0000000..67f1c5c
--- /dev/null
+++ b/snes-frontend/src/emu_ui/debug/mod.rs
@@ -0,0 +1,3 @@
+pub mod debug;
+
+pub use debug::build_debug_window;
\ No newline at end of file
diff --git a/snes-frontend/src/ui/game.rs b/snes-frontend/src/emu_ui/game.rs
similarity index 65%
rename from snes-frontend/src/ui/game.rs
rename to snes-frontend/src/emu_ui/game.rs
index a7479f5..c1272ea 100644
--- a/snes-frontend/src/ui/game.rs
+++ b/snes-frontend/src/emu_ui/game.rs
@@ -1,7 +1,7 @@
 use eframe::egui;
 
 
-pub fn build_game_window(ctx: &egui::Context, ui: &mut egui::Ui) {
+pub fn build_game_window(ctx: &egui::Context) {
     egui::Window::new("Game").show(ctx, |ui| {
         ui.label("Hello World!");
         render_framebuffer(ctx, ui, &[]);
@@ -9,7 +9,7 @@ pub fn build_game_window(ctx: &egui::Context, ui: &mut egui::Ui) {
 }
 
 
-fn render_framebuffer(ctx: &egui::Context, ui: &mut egui::Ui, framebuffer: &[u8]) {
+fn render_framebuffer(ctx: &egui::Context, ui: &mut egui::Ui, _framebuffer: &[u8]) {
     ui.painter().rect_filled(
         ctx.available_rect(),
         egui::Rounding::ZERO,
diff --git a/snes-frontend/src/ui/menu.rs b/snes-frontend/src/emu_ui/menu.rs
similarity index 85%
rename from snes-frontend/src/ui/menu.rs
rename to snes-frontend/src/emu_ui/menu.rs
index c05d2a3..2944d26 100644
--- a/snes-frontend/src/ui/menu.rs
+++ b/snes-frontend/src/emu_ui/menu.rs
@@ -1,8 +1,10 @@
 use eframe::egui;
 use snes_core::emulator::Emulator;
 
+use crate::emu_state::AppState;
 
-pub fn build_menu_bar(emulator: &mut Emulator, ui: &mut egui::Ui) {
+
+pub fn build_menu_bar(emulator: &mut Emulator, ui: &mut egui::Ui, state: &mut AppState) {
     egui::menu::bar(ui, |ui| {
         ui.menu_button("Emulator", |ui| {
             if ui.button("Load ROM file").clicked() {
@@ -17,6 +19,7 @@ pub fn build_menu_bar(emulator: &mut Emulator, ui: &mut egui::Ui) {
         });
         ui.menu_button("Debug", |ui| {
             if ui.button("Show Debug Menu").clicked() {
+                state.debug_options.show_debug_options_window = true;
             }
         });
     });
diff --git a/snes-frontend/src/ui/mod.rs b/snes-frontend/src/emu_ui/mod.rs
similarity index 65%
rename from snes-frontend/src/ui/mod.rs
rename to snes-frontend/src/emu_ui/mod.rs
index ec68d7a..de884d2 100644
--- a/snes-frontend/src/ui/mod.rs
+++ b/snes-frontend/src/emu_ui/mod.rs
@@ -1,2 +1,3 @@
 pub mod game;
 pub mod menu;
+pub mod debug;
diff --git a/snes-frontend/src/main.rs b/snes-frontend/src/main.rs
index 6f08727..591efcf 100644
--- a/snes-frontend/src/main.rs
+++ b/snes-frontend/src/main.rs
@@ -1,12 +1,14 @@
 use eframe::egui;
 use snes_core::emulator::Emulator;
 
-pub mod ui;
+mod emu_ui;
+mod emu_state;
 
 
 #[derive(Default)]
 struct SnesEmulatorApp {
     emulator: Emulator,
+    state: emu_state::AppState,
 }
 
 impl SnesEmulatorApp {
@@ -18,10 +20,11 @@ impl SnesEmulatorApp {
 impl eframe::App for SnesEmulatorApp {
     fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) {
         egui::CentralPanel::default().show(ctx, |ui| {
-            ui::menu::build_menu_bar(&mut self.emulator, ui);
+            emu_ui::menu::build_menu_bar(&mut self.emulator, ui, &mut self.state);
             ui.separator();
-            // ui::game::build_game_window(ctx, ui);
+            // ui::game::build_game_window(ctx);
         });
+        emu_ui::debug::build_debug_window(ctx, &mut self.state);
     }
 }