diff --git a/src/device.rs b/src/device.rs
index b9801f5..4c1462a 100644
--- a/src/device.rs
+++ b/src/device.rs
@@ -45,7 +45,6 @@ pub mod unmapped;
 pub mod vi;
 
 pub fn run_game(device: &mut Device, rom_contents: Vec<u8>, game_settings: ui::gui::GameSettings) {
-    device.ui.video.fullscreen = game_settings.fullscreen;
     device.cpu.overclock = game_settings.overclock;
     if game_settings.disable_expansion_pak {
         device.rdram.size = 0x400000;
diff --git a/src/main.rs b/src/main.rs
index 36b139d..9bae922 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -18,7 +18,7 @@ use ui::gui;
 struct Args {
     game: Option<String>,
     #[arg(short, long)]
-    fullscreen: Option<bool>,
+    fullscreen: bool,
     #[arg(long)]
     overclock: Option<bool>,
     #[arg(long)]
@@ -109,7 +109,9 @@ async fn main() -> std::io::Result<()> {
         }
 
         let mut device = device::Device::new();
-        let fullscreen = args.fullscreen.unwrap_or(device.ui.config.video.fullscreen);
+        if args.fullscreen {
+            device.ui.video.fullscreen = true;
+        }
         let overclock = args
             .overclock
             .unwrap_or(device.ui.config.emulation.overclock);
@@ -159,7 +161,6 @@ async fn main() -> std::io::Result<()> {
             &mut device,
             rom_contents,
             ui::gui::GameSettings {
-                fullscreen,
                 overclock,
                 disable_expansion_pak,
                 cheats,
diff --git a/src/ui/gui.rs b/src/ui/gui.rs
index acdf369..8b83b86 100644
--- a/src/ui/gui.rs
+++ b/src/ui/gui.rs
@@ -24,7 +24,6 @@ pub struct GbPaths {
 
 #[derive(Clone)]
 pub struct GameSettings {
-    pub fullscreen: bool,
     pub overclock: bool,
     pub disable_expansion_pak: bool,
     pub cheats: std::collections::HashMap<String, Option<String>>,
@@ -331,8 +330,6 @@ pub fn run_rom(
 
         let mut command = std::process::Command::new(std::env::current_exe().unwrap());
         command.args([
-            "--fullscreen",
-            &game_settings.fullscreen.to_string(),
             "--overclock",
             &game_settings.overclock.to_string(),
             "--disable-expansion-pak",
@@ -416,7 +413,6 @@ fn open_rom(app: &AppWindow) {
         }
     }
 
-    let fullscreen = app.get_fullscreen();
     let overclock = app.get_overclock_n64_cpu();
     let disable_expansion_pak = app.get_disable_expansion_pak();
 
@@ -443,7 +439,6 @@ fn open_rom(app: &AppWindow) {
                 },
                 file.path().to_path_buf(),
                 GameSettings {
-                    fullscreen,
                     overclock,
                     disable_expansion_pak,
                     cheats: std::collections::HashMap::new(), // will be filled in later
diff --git a/src/ui/netplay.rs b/src/ui/netplay.rs
index a09a7e4..83f6c34 100644
--- a/src/ui/netplay.rs
+++ b/src/ui/netplay.rs
@@ -711,7 +711,6 @@ fn create_session(
                             message.player_name.as_ref().unwrap().into(),
                             session.port.unwrap(),
                             GameSettings {
-                                fullscreen: game_settings.fullscreen,
                                 overclock: overclock.parse().unwrap(),
                                 disable_expansion_pak: disable_expansion_pak.parse().unwrap(),
                                 cheats: serde_json::from_str(cheats).unwrap(),
@@ -755,7 +754,6 @@ fn join_session(
     game_hash: String,
     password: String,
     room_port: i32,
-    fullscreen: bool,
     weak_app: slint::Weak<AppWindow>,
     weak: slint::Weak<NetplayJoin>,
 ) {
@@ -834,7 +832,6 @@ fn join_session(
                             message.player_name.as_ref().unwrap().into(),
                             session.port.unwrap(),
                             GameSettings {
-                                fullscreen,
                                 overclock: overclock.parse().unwrap(),
                                 disable_expansion_pak: disable_expansion_pak.parse().unwrap(),
                                 cheats: serde_json::from_str(cheats).unwrap(),
@@ -1102,7 +1099,6 @@ fn setup_wait_window(
                                     },
                                     handle.get_rom_path().as_str().into(),
                                     GameSettings {
-                                        fullscreen: game_settings.fullscreen,
                                         overclock: game_settings.overclock,
                                         disable_expansion_pak: game_settings.disable_expansion_pak,
                                         cheats: game_settings.cheats,
@@ -1153,7 +1149,6 @@ fn setup_wait_window(
 
 pub fn setup_join_window(
     join_window: &NetplayJoin,
-    fullscreen: bool,
     rom_dir: slint::SharedString,
     weak_app: slint::Weak<AppWindow>,
 ) {
@@ -1202,7 +1197,6 @@ pub fn setup_join_window(
                 game_hash.to_string(),
                 password.to_string(),
                 room_port,
-                fullscreen,
                 weak_app.clone(),
                 weak.clone(),
             );
@@ -1226,7 +1220,6 @@ pub fn netplay_window(app: &AppWindow, controller_paths: &[Option<String>]) {
                 setup_create_window(
                     &create_window,
                     GameSettings {
-                        fullscreen: handle.get_fullscreen(),
                         overclock: handle.get_overclock_n64_cpu(),
                         disable_expansion_pak: handle.get_disable_expansion_pak(),
                         cheats: std::collections::HashMap::new(), // not used here
@@ -1249,12 +1242,7 @@ pub fn netplay_window(app: &AppWindow, controller_paths: &[Option<String>]) {
             .upgrade_in_event_loop(move |handle| {
                 let join_window = NetplayJoin::new().unwrap();
                 save_settings(&handle, &controller_paths);
-                setup_join_window(
-                    &join_window,
-                    handle.get_fullscreen(),
-                    handle.get_rom_dir(),
-                    weak_app,
-                );
+                setup_join_window(&join_window, handle.get_rom_dir(), weak_app);
             })
             .unwrap();
     });