diff --git a/gb-emu/src/main.rs b/gb-emu/src/main.rs
index b21ca47..8fcd300 100644
--- a/gb-emu/src/main.rs
+++ b/gb-emu/src/main.rs
@@ -11,8 +11,11 @@ use gb_emu_lib::{
     EmulatorCore,
 };
 use gilrs::Gilrs;
-use std::sync::mpsc::channel;
-use window::WindowRenderer;
+use std::{
+    sync::mpsc::channel,
+    time::{Duration, Instant},
+};
+use window::{WindowManager, WindowRenderer};
 
 mod audio;
 #[cfg(feature = "camera")]
@@ -75,77 +78,99 @@ struct Args {
 fn main() {
     let args = Args::parse();
 
-    let factor = if let Some(factor) = args.scale_factor {
-        factor
-    } else {
-        3
-    };
-
-    let tile_window: Option<WindowRenderer> = if args.tile_window {
-        Some(WindowRenderer::new(factor, None))
-    } else {
-        None
-    };
-
-    let (sender, receiver) = channel::<EmulatorMessage>();
-    let (debug_sender, debug_receiver) = channel::<EmulatorMessage>();
-
-    ctrlc::set_handler(move || {
-        sender.send(EmulatorMessage::Stop).unwrap();
-        debug_sender.send(EmulatorMessage::Stop).unwrap()
-    })
-    .unwrap();
-
-    let (output, _stream) = audio::create_output(args.mute);
-
-    let window = WindowRenderer::new(factor, Some(Gilrs::new().unwrap()));
-    let rom = RomFile::Path(args.rom);
-
-    let options = EmulatorOptions::new(window, rom, output)
-        .with_save_path(args.save)
-        .with_serial_target(if args.connect_serial {
-            SerialTarget::Stdout
-        } else {
-            SerialTarget::None
-        })
-        .with_bootrom(args.bootrom.map(RomFile::Path), args.show_bootrom)
-        .with_no_save(args.no_save)
-        .with_tile_window(tile_window)
-        .with_cgb_mode(!args.dmg);
-
-    // let core: Box<dyn EmulatorCoreTrait> = if args.camera {
-    //     Box::new(EmulatorCore::init(receiver, options, Webcam::new()))
-    // } else {
-    //     Box::new(EmulatorCore::init(receiver, options, NoCamera::default()))
-    // };
-
-    #[cfg(not(feature = "camera"))]
-    let core: Box<dyn EmulatorCoreTrait> =
-        Box::new(EmulatorCore::init(receiver, options, NoCamera::default()));
-    #[cfg(feature = "camera")]
-    let core = Box::new(EmulatorCore::init(receiver, options, Webcam::new()));
-
-    let mut handler = if args.debug {
-        EmulatorHandler::Debug(Debugger::new(core, debug_receiver))
-    } else {
-        EmulatorHandler::Normal(core)
-    };
-
-    loop {
-        handler.run();
-    }
+    EmulatorHandler::run(args);
 }
 
-enum EmulatorHandler {
+enum EmulatorTypes {
     Debug(Debugger),
     Normal(Box<dyn EmulatorCoreTrait>),
 }
 
+struct EmulatorHandler {
+    emu: EmulatorTypes,
+    window_manager: WindowManager,
+    since: Instant,
+}
+
 impl EmulatorHandler {
-    fn run(&mut self) {
-        match self {
-            EmulatorHandler::Debug(ref mut debugger) => debugger.step(),
-            EmulatorHandler::Normal(ref mut core) => core.run(),
+    fn run(args: Args) -> ! {
+        let factor = if let Some(factor) = args.scale_factor {
+            factor
+        } else {
+            3
+        };
+
+        let (sender, receiver) = channel::<EmulatorMessage>();
+        let (debug_sender, debug_receiver) = channel::<EmulatorMessage>();
+
+        ctrlc::set_handler(move || {
+            sender.send(EmulatorMessage::Stop).unwrap();
+            debug_sender.send(EmulatorMessage::Stop).unwrap()
+        })
+        .unwrap();
+
+        let (output, _stream) = audio::create_output(args.mute);
+        let rom = RomFile::Path(args.rom);
+
+        let mut window_manager = WindowManager::new();
+
+        let window = window_manager.add(factor, Some(Gilrs::new().unwrap()));
+        let tile_window: Option<WindowRenderer> = if args.tile_window {
+            Some(window_manager.add(factor, None))
+        } else {
+            None
+        };
+
+        let options = EmulatorOptions::new(window, rom, output)
+            .with_save_path(args.save)
+            .with_serial_target(if args.connect_serial {
+                SerialTarget::Stdout
+            } else {
+                SerialTarget::None
+            })
+            .with_bootrom(args.bootrom.map(RomFile::Path), args.show_bootrom)
+            .with_no_save(args.no_save)
+            .with_tile_window(tile_window)
+            .with_cgb_mode(!args.dmg);
+
+        // let core: Box<dyn EmulatorCoreTrait> = if args.camera {
+        //     Box::new(EmulatorCore::init(receiver, options, Webcam::new()))
+        // } else {
+        //     Box::new(EmulatorCore::init(receiver, options, NoCamera::default()))
+        // };
+
+        #[cfg(not(feature = "camera"))]
+        let core: Box<dyn EmulatorCoreTrait> =
+            Box::new(EmulatorCore::init(receiver, options, NoCamera::default()));
+        #[cfg(feature = "camera")]
+        let core = Box::new(EmulatorCore::init(receiver, options, Webcam::new()));
+
+        let emu = if args.debug {
+            EmulatorTypes::Debug(Debugger::new(core, debug_receiver))
+        } else {
+            EmulatorTypes::Normal(core)
+        };
+
+        let since = Instant::now();
+
+        let mut h = Self {
+            emu,
+            window_manager,
+            since,
+        };
+        loop {
+            h.cycle();
+        }
+    }
+
+    fn cycle(&mut self) {
+        if self.since.elapsed() >= Duration::from_millis(10) {
+            self.window_manager.update_events();
+            self.since = Instant::now();
+        }
+        match self.emu {
+            EmulatorTypes::Debug(ref mut debugger) => debugger.step(),
+            EmulatorTypes::Normal(ref mut core) => core.run(),
         }
     }
 }
diff --git a/gb-emu/src/window.rs b/gb-emu/src/window.rs
index 923396e..434f7f0 100644
--- a/gb-emu/src/window.rs
+++ b/gb-emu/src/window.rs
@@ -1,3 +1,8 @@
+use std::{
+    collections::HashMap,
+    sync::{Arc, Mutex},
+};
+
 use gb_emu_lib::{
     connect::{JoypadState, Renderer},
     util::scale_buffer_in_place,
@@ -12,16 +17,86 @@ use winit::{
     event::{Event, VirtualKeyCode, WindowEvent},
     event_loop::EventLoop,
     platform::run_return::EventLoopExtRunReturn,
-    window::{Window, WindowBuilder},
+    window::{Window, WindowBuilder, WindowId},
 };
 use winit_input_helper::WinitInputHelper;
 
-pub struct WindowRenderer {
-    event_loop: EventLoop<()>,
-    window: Window,
-    input: WinitInputHelper,
-    pixels: Pixels,
+pub struct WindowInfo {
+    id: WindowId,
+    data: Arc<Mutex<WindowData>>,
+}
+
+pub struct WindowData {
     scaled_buf: Vec<[u8; 4]>,
+    pixels: Pixels,
+}
+
+pub struct WindowManager {
+    event_loop: EventLoop<()>,
+    windows: HashMap<WindowId, Arc<Mutex<WindowData>>>,
+    input: Arc<Mutex<WinitInputHelper>>,
+}
+
+impl WindowManager {
+    pub(crate) fn new() -> Self {
+        Self {
+            event_loop: EventLoop::new(),
+            windows: HashMap::new(),
+            input: Arc::new(Mutex::new(WinitInputHelper::new())),
+        }
+    }
+
+    pub(crate) fn add(&mut self, factor: usize, gamepad_handler: Option<Gilrs>) -> WindowRenderer {
+        let (r, info) = WindowRenderer::new(
+            factor,
+            gamepad_handler,
+            self.input.clone(),
+            &self.event_loop,
+        );
+        self.windows.insert(info.id, info.data);
+        r
+    }
+
+    pub fn update_events(&mut self) {
+        self.event_loop.run_return(|event, _, control_flow| {
+            control_flow.set_wait();
+            if let Ok(mut i) = self.input.lock() {
+                i.update(&event);
+            }
+
+            match event {
+                Event::WindowEvent {
+                    event: WindowEvent::CloseRequested,
+                    window_id: _,
+                } => {
+                    // quit = true;
+                }
+                Event::MainEventsCleared => {
+                    control_flow.set_exit();
+                }
+                Event::RedrawRequested(window_id) => {
+                    if let Some(w) = self.windows.get(&window_id) {
+                        if let Ok(mut w) = w.lock() {
+                            let scaled = w.scaled_buf.clone();
+                            for (pixel, source) in
+                                w.pixels.frame_mut().chunks_exact_mut(4).zip(&scaled)
+                            {
+                                pixel.copy_from_slice(source);
+                            }
+                            w.pixels.render().unwrap();
+                        }
+                    }
+                }
+                _ => {}
+            }
+        });
+    }
+}
+
+pub struct WindowRenderer {
+    window: Window,
+    input: Arc<Mutex<WinitInputHelper>>,
+    data: Arc<Mutex<WindowData>>,
     width: usize,
     height: usize,
     factor: usize,
@@ -32,11 +107,15 @@ pub struct WindowRenderer {
 }
 
 impl WindowRenderer {
-    pub fn new(factor: usize, gamepad_handler: Option<Gilrs>) -> Self {
-        let event_loop = EventLoop::new();
+    pub fn new(
+        factor: usize,
+        gamepad_handler: Option<Gilrs>,
+        input: Arc<Mutex<WinitInputHelper>>,
+        event_loop: &EventLoop<()>,
+    ) -> (Self, WindowInfo) {
         let window = WindowBuilder::new()
-            .with_title("A fantastic window!")
-            .build(&event_loop)
+            .with_title("Gameboy")
+            .build(event_loop)
             .unwrap();
 
         let real_factor = (window.scale_factor() * factor as f64) as usize;
@@ -54,52 +133,30 @@ impl WindowRenderer {
                 .unwrap()
         };
 
-        let input = WinitInputHelper::new();
-        Self {
-            event_loop,
-            window,
-            input,
+        let data = Arc::new(Mutex::new(WindowData {
+            scaled_buf: Vec::new(),
             pixels,
-            scaled_buf: vec![],
-            width: 0,
-            height: 0,
-            factor,
-            real_factor,
-            gamepad_handler,
-            joypad_state: JoypadState::default(),
-            current_rumble: false,
-        }
-    }
+        }));
+        let info = WindowInfo {
+            id: window.id(),
+            data: data.clone(),
+        };
 
-    fn update_events(&mut self) {
-        self.event_loop.run_return(|event, _, control_flow| {
-            control_flow.set_wait();
-            self.input.update(&event);
-
-            match event {
-                Event::WindowEvent {
-                    event: WindowEvent::CloseRequested,
-                    ..
-                } => {
-                    // quit = true;
-                }
-                Event::MainEventsCleared => {
-                    control_flow.set_exit();
-                }
-                Event::RedrawRequested(_) => {
-                    for (pixel, source) in self
-                        .pixels
-                        .frame_mut()
-                        .chunks_exact_mut(4)
-                        .zip(&self.scaled_buf)
-                    {
-                        pixel.copy_from_slice(source);
-                    }
-                    self.pixels.render().unwrap();
-                }
-                _ => {}
-            }
-        });
+        (
+            Self {
+                window,
+                input,
+                data,
+                width: 0,
+                height: 0,
+                factor,
+                real_factor,
+                gamepad_handler,
+                joypad_state: JoypadState::default(),
+                current_rumble: false,
+            },
+            info,
+        )
     }
 }
 
@@ -113,28 +170,30 @@ impl Renderer<[u8; 4]> for WindowRenderer {
         let h = (height * self.real_factor) as u32;
 
         self.window.set_inner_size(PhysicalSize::new(w, h));
-        self.pixels = {
-            let window_size = self.window.inner_size();
-            let surface_texture =
-                SurfaceTexture::new(window_size.width, window_size.height, &self.window);
-            Pixels::new(window_size.width, window_size.height, surface_texture).unwrap()
-        };
-
-        self.scaled_buf.resize((w * h) as usize, [0; 4]);
+        if let Ok(mut data) = self.data.lock() {
+            data.pixels = {
+                let window_size = self.window.inner_size();
+                let surface_texture =
+                    SurfaceTexture::new(window_size.width, window_size.height, &self.window);
+                Pixels::new(window_size.width, window_size.height, surface_texture).unwrap()
+            };
 
+            data.scaled_buf.resize((w * h) as usize, [0; 4]);
+        }
         self.window.request_redraw();
     }
 
     fn display(&mut self, buffer: &[[u8; 4]]) {
-        scale_buffer_in_place(
-            buffer,
-            &mut self.scaled_buf,
-            self.width,
-            self.height,
-            self.real_factor,
-        );
+        if let Ok(mut data) = self.data.lock() {
+            scale_buffer_in_place(
+                buffer,
+                &mut data.scaled_buf,
+                self.width,
+                self.height,
+                self.real_factor,
+            );
+        }
         self.window.request_redraw();
-        self.update_events();
     }
 
     fn set_title(&mut self, title: String) {
@@ -142,7 +201,6 @@ impl Renderer<[u8; 4]> for WindowRenderer {
     }
 
     fn latest_joypad_state(&mut self) -> JoypadState {
-        self.update_events();
         self.joypad_state.reset();
 
         if let Some(ref mut gamepad_handler) = self.gamepad_handler {
@@ -174,19 +232,20 @@ impl Renderer<[u8; 4]> for WindowRenderer {
             }
         }
 
-        self.joypad_state.down |=
-            self.input.key_held(VirtualKeyCode::Down) || self.input.key_held(VirtualKeyCode::S);
-        self.joypad_state.up |=
-            self.input.key_held(VirtualKeyCode::Up) || self.input.key_held(VirtualKeyCode::W);
-        self.joypad_state.left |=
-            self.input.key_held(VirtualKeyCode::Left) || self.input.key_held(VirtualKeyCode::A);
-        self.joypad_state.right |=
-            self.input.key_held(VirtualKeyCode::Right) || self.input.key_held(VirtualKeyCode::D);
-        self.joypad_state.start |= self.input.key_held(VirtualKeyCode::Equals);
-        self.joypad_state.select |= self.input.key_held(VirtualKeyCode::Minus);
-        self.joypad_state.a |= self.input.key_held(VirtualKeyCode::Apostrophe);
-        self.joypad_state.b |= self.input.key_held(VirtualKeyCode::Semicolon);
-
+        if let Ok(input) = self.input.lock() {
+            self.joypad_state.down |=
+                input.key_held(VirtualKeyCode::Down) || input.key_held(VirtualKeyCode::S);
+            self.joypad_state.up |=
+                input.key_held(VirtualKeyCode::Up) || input.key_held(VirtualKeyCode::W);
+            self.joypad_state.left |=
+                input.key_held(VirtualKeyCode::Left) || input.key_held(VirtualKeyCode::A);
+            self.joypad_state.right |=
+                input.key_held(VirtualKeyCode::Right) || input.key_held(VirtualKeyCode::D);
+            self.joypad_state.start |= input.key_held(VirtualKeyCode::Equals);
+            self.joypad_state.select |= input.key_held(VirtualKeyCode::Minus);
+            self.joypad_state.a |= input.key_held(VirtualKeyCode::Apostrophe);
+            self.joypad_state.b |= input.key_held(VirtualKeyCode::Semicolon);
+        }
         self.joypad_state
     }