diff --git a/src/main.rs b/src/main.rs
index 0546a14..b1c1bef 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -134,6 +134,9 @@ impl RustDoomLauncher {
         if self.respawning_monsters {
             command.push("-respawn");
         }
+        if self.fast_monsters {
+            command.push("-fast");
+        }
         Ok((launcher.path.to_str().unwrap(), command))
     }
 
@@ -194,7 +197,6 @@ impl eframe::App for RustDoomLauncher {
             self.config_file_loaded = true;
         }
         egui::containers::panel::CentralPanel::default().show(ctx, |ui| {
-            
             ui.horizontal(|ui| {
                 ui.heading("RustDoomLauncher");
                 let button = match self.launcher_and_iwad() {
@@ -356,83 +358,83 @@ impl eframe::App for RustDoomLauncher {
             }
         });
         egui::Window::new("Add WAD or Launcher")
-                .open(&mut self.add_stuff_window_displayed)
-                .show(ctx, |ui| {
-                    ui.horizontal(|ui| {
-                        let name_label = ui.label("Name");
-                        ui.text_edit_singleline(&mut self.name)
-                            .labelled_by(name_label.id);
-                    });
-                    ui.horizontal(|ui| {
-                        ui.label("Path");
-                        ui.label(
-                            self.selected_file_path
-                                .clone()
-                                .into_os_string()
-                                .into_string()
-                                .unwrap(),
-                        );
-                        if ui.button("Find").clicked() {
-                            if let Some(path) = rfd::FileDialog::new().pick_file() {
-                                self.selected_file_path = path;
-                            }
-                        }
-                    });
-                    ui.horizontal(|ui| {
-                        ui.label("What sort of file is it?");
-                        if ui
-                            .add(egui::SelectableLabel::new(
-                                self.selected_file_type == FileType::Pwad,
-                                "PWAD",
-                            ))
-                            .clicked()
-                        {
-                            self.selected_file_type = FileType::Pwad
-                        }
-                        if ui
-                            .add(egui::SelectableLabel::new(
-                                self.selected_file_type == FileType::Iwad,
-                                "IWAD",
-                            ))
-                            .clicked()
-                        {
-                            self.selected_file_type = FileType::Iwad
-                        }
-                        if ui
-                            .add(egui::SelectableLabel::new(
-                                self.selected_file_type == FileType::Launcher,
-                                "Launcher",
-                            ))
-                            .clicked()
-                        {
-                            self.selected_file_type = FileType::Launcher
-                        }
-                    });
-                    if ui.button("Add!").clicked() {
-                        if self.name.is_empty() || self.selected_file_path.as_os_str().is_empty() {
-                            return;
-                        }
-                        match self.selected_file_type {
-                            FileType::Iwad => {
-                                self.all_iwads.push(WadInfo {
-                                    name: self.name.clone(),
-                                    path: self.selected_file_path.clone(),
-                                });
-                            }
-                            FileType::Pwad => {
-                                self.all_pwads.push(WadInfo {
-                                    name: self.name.clone(),
-                                    path: self.selected_file_path.clone(),
-                                });
-                            }
-                            FileType::Launcher => {
-                                self.all_launchers.push(LauncherInfo {
-                                    name: self.name.clone(),
-                                    path: self.selected_file_path.clone(),
-                                });
-                            }
+            .open(&mut self.add_stuff_window_displayed)
+            .show(ctx, |ui| {
+                ui.horizontal(|ui| {
+                    let name_label = ui.label("Name");
+                    ui.text_edit_singleline(&mut self.name)
+                        .labelled_by(name_label.id);
+                });
+                ui.horizontal(|ui| {
+                    ui.label("Path");
+                    ui.label(
+                        self.selected_file_path
+                            .clone()
+                            .into_os_string()
+                            .into_string()
+                            .unwrap(),
+                    );
+                    if ui.button("Find").clicked() {
+                        if let Some(path) = rfd::FileDialog::new().pick_file() {
+                            self.selected_file_path = path;
                         }
                     }
                 });
+                ui.horizontal(|ui| {
+                    ui.label("What sort of file is it?");
+                    if ui
+                        .add(egui::SelectableLabel::new(
+                            self.selected_file_type == FileType::Pwad,
+                            "PWAD",
+                        ))
+                        .clicked()
+                    {
+                        self.selected_file_type = FileType::Pwad
+                    }
+                    if ui
+                        .add(egui::SelectableLabel::new(
+                            self.selected_file_type == FileType::Iwad,
+                            "IWAD",
+                        ))
+                        .clicked()
+                    {
+                        self.selected_file_type = FileType::Iwad
+                    }
+                    if ui
+                        .add(egui::SelectableLabel::new(
+                            self.selected_file_type == FileType::Launcher,
+                            "Launcher",
+                        ))
+                        .clicked()
+                    {
+                        self.selected_file_type = FileType::Launcher
+                    }
+                });
+                if ui.button("Add!").clicked() {
+                    if self.name.is_empty() || self.selected_file_path.as_os_str().is_empty() {
+                        return;
+                    }
+                    match self.selected_file_type {
+                        FileType::Iwad => {
+                            self.all_iwads.push(WadInfo {
+                                name: self.name.clone(),
+                                path: self.selected_file_path.clone(),
+                            });
+                        }
+                        FileType::Pwad => {
+                            self.all_pwads.push(WadInfo {
+                                name: self.name.clone(),
+                                path: self.selected_file_path.clone(),
+                            });
+                        }
+                        FileType::Launcher => {
+                            self.all_launchers.push(LauncherInfo {
+                                name: self.name.clone(),
+                                path: self.selected_file_path.clone(),
+                            });
+                        }
+                    }
+                }
+            });
     }
 }