diff --git a/Cargo.lock b/Cargo.lock
index 99446b9..e5a247f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1312,6 +1312,7 @@ dependencies = [
  "bevy",
  "enumset",
  "rand",
+ "serde",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index 2771225..ba45ed1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,3 +7,4 @@ edition = "2024"
 bevy = "0.17.3"
 enumset = "1.1.10"
 rand = "0.9.2"
+serde = { version = "1.0.228", features = ["derive"] }
diff --git a/src/gameplay/mod.rs b/src/gameplay/mod.rs
new file mode 100644
index 0000000..8665b62
--- /dev/null
+++ b/src/gameplay/mod.rs
@@ -0,0 +1 @@
+pub mod navi;
diff --git a/src/gameplay/navi.rs b/src/gameplay/navi.rs
new file mode 100644
index 0000000..77c65b2
--- /dev/null
+++ b/src/gameplay/navi.rs
@@ -0,0 +1,120 @@
+use bevy::{post_process::bloom::Bloom, prelude::*, sprite::Anchor};
+use rand::Rng;
+
+use crate::{
+    GameState, PauseState,
+    utils::input::{GameInputPlugin, InputButton, InputPressStatus},
+};
+
+const PLAYER_SPEED: f32 = 100.;
+
+pub struct NaviGameplayPlugin;
+
+impl Plugin for NaviGameplayPlugin {
+    fn build(&self, app: &mut App) {
+        app.add_systems(Startup, (setup_scene, spawn_bus, spawn_enemy))
+            .add_systems(
+                Update,
+                (
+                    move_player
+                        .run_if(in_state(GameState::Navi).and(in_state(PauseState::Running))),
+                    follow_player,
+                ),
+            );
+    }
+}
+#[derive(Component)]
+pub struct PlayerVWBus;
+
+pub fn setup_scene(
+    mut commands: Commands,
+    mut meshes: ResMut<Assets<Mesh>>,
+    mut materials: ResMut<Assets<ColorMaterial>>,
+) {
+    commands.spawn((
+        Mesh2d(meshes.add(Rectangle::new(1000., 70.))),
+        MeshMaterial2d(materials.add(Color::srgb(0.2, 0.2, 0.3))),
+    ));
+
+    commands.spawn((Camera2d, Bloom::NATURAL));
+}
+
+pub fn spawn_bus(mut commands: Commands, asset_server: Res<AssetServer>) {
+    let texture = asset_server.load("bus/basicbus.png");
+    commands.spawn((
+        PlayerVWBus,
+        Sprite {
+            image: texture,
+            custom_size: Some(Vec2::new(192., 133.)),
+            ..default()
+        },
+        Transform::from_xyz(2., 0., 3.),
+        Anchor::CENTER,
+    ));
+}
+
+pub fn spawn_enemy(
+    mut commands: Commands,
+    mut meshes: ResMut<Assets<Mesh>>,
+    mut materials: ResMut<Assets<ColorMaterial>>,
+) {
+    let mut rng = rand::rng();
+    for _ in 0..10 {
+        commands.spawn((
+            Mesh2d(meshes.add(Circle::new(10.))),
+            MeshMaterial2d(materials.add(Color::srgb(1.1, 0.2, 0.3))),
+            Transform::from_xyz(
+                rng.random_range(-600..600) as f32,
+                rng.random_range(-600..600) as f32,
+                1.,
+            ),
+        ));
+    }
+}
+
+pub fn move_player(
+    mut player: Single<&mut Transform, With<PlayerVWBus>>,
+    mut player_sprite: Single<&mut Sprite, With<PlayerVWBus>>,
+    time: Res<Time>,
+    buttons_pressed: Res<InputPressStatus>,
+) {
+    let mut direction = Vec2::ZERO;
+
+    if buttons_pressed.contains(InputButton::Up) {
+        direction.y += 1.;
+    }
+
+    if buttons_pressed.contains(InputButton::Down) {
+        direction.y -= 1.;
+    }
+
+    if buttons_pressed.contains(InputButton::Left) {
+        direction.x -= 1.;
+    }
+
+    if buttons_pressed.contains(InputButton::Right) {
+        direction.x += 1.;
+    }
+
+    let move_delta = direction.normalize_or_zero() * PLAYER_SPEED * time.delta_secs();
+    player.translation += move_delta.extend(0.);
+
+    if direction.x > 0. {
+        player_sprite.flip_x = true;
+    } else if direction.x < 0. {
+        player_sprite.flip_x = false;
+    }
+}
+
+pub fn follow_player(
+    mut camera: Single<&mut Transform, (With<Camera2d>, Without<PlayerVWBus>)>,
+    player: Single<&Transform, (With<PlayerVWBus>, Without<Camera2d>)>,
+    time: Res<Time>,
+) {
+    let Vec3 { x, y, .. } = player.translation;
+    let direction = Vec3::new(x, y, camera.translation.z);
+
+    camera
+        .translation
+        .smooth_nudge(&direction, 10., time.delta_secs());
+}
diff --git a/src/main.rs b/src/main.rs
index 2c851de..33e1fc9 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,125 +1,36 @@
 use bevy::{post_process::bloom::Bloom, prelude::*, sprite::Anchor};
 use rand::Rng;
 
-use crate::utils::input::{GameInputPlugin, InputButton, InputPressStatus};
+use crate::{
+    gameplay::navi::NaviGameplayPlugin,
+    utils::input::{GameInputPlugin, InputButton, InputPressStatus},
+};
 
+mod gameplay;
 mod utils;
 
-#[derive(Component)]
-pub struct PlayerVWBus;
-
 #[derive(States, Default, Debug, Clone, PartialEq, Eq, Hash)]
 pub enum GameState {
     #[default]
     Navi,
-    Pause,
     Combat,
+    MainMenu,
 }
 
-const PLAYER_SPEED: f32 = 100.;
+#[derive(States, Default, Debug, Clone, PartialEq, Eq, Hash)]
+pub enum PauseState {
+    #[default]
+    Running,
+    Paused,
+    AnimatingIntoPause,
+    AnimatingOutOfPause,
+}
 
 fn main() {
     println!("Hello, world!");
     App::new()
-        .add_plugins((DefaultPlugins, GameInputPlugin))
+        .add_plugins((DefaultPlugins, GameInputPlugin, NaviGameplayPlugin))
         .init_state::<GameState>()
-        .add_systems(Startup, (setup_scene, spawn_bus, spawn_enemy))
-        .add_systems(
-            Update,
-            (move_player.run_if(in_state(GameState::Navi)), follow_player),
-        )
+        .init_state::<PauseState>()
         .run();
 }
-
-fn setup_scene(
-    mut commands: Commands,
-    mut meshes: ResMut<Assets<Mesh>>,
-    mut materials: ResMut<Assets<ColorMaterial>>,
-) {
-    commands.spawn((
-        Mesh2d(meshes.add(Rectangle::new(1000., 70.))),
-        MeshMaterial2d(materials.add(Color::srgb(0.2, 0.2, 0.3))),
-    ));
-
-    commands.spawn((Camera2d, Bloom::NATURAL));
-}
-
-fn spawn_bus(mut commands: Commands, asset_server: Res<AssetServer>) {
-    let texture = asset_server.load("bus/basicbus.png");
-    commands.spawn((
-        PlayerVWBus,
-        Sprite {
-            image: texture,
-            custom_size: Some(Vec2::new(192., 133.)),
-            ..default()
-        },
-        Transform::from_xyz(2., 0., 3.),
-        Anchor::CENTER,
-    ));
-}
-
-fn spawn_enemy(
-    mut commands: Commands,
-    mut meshes: ResMut<Assets<Mesh>>,
-    mut materials: ResMut<Assets<ColorMaterial>>,
-) {
-    let mut rng = rand::rng();
-    for _ in 0..10 {
-        commands.spawn((
-            Mesh2d(meshes.add(Circle::new(10.))),
-            MeshMaterial2d(materials.add(Color::srgb(1.1, 0.2, 0.3))),
-            Transform::from_xyz(
-                rng.random_range(-600..600) as f32,
-                rng.random_range(-600..600) as f32,
-                1.,
-            ),
-        ));
-    }
-}
-
-fn move_player(
-    mut player: Single<&mut Transform, With<PlayerVWBus>>,
-    mut player_sprite: Single<&mut Sprite, With<PlayerVWBus>>,
-    time: Res<Time>,
-    buttons_pressed: Res<InputPressStatus>,
-) {
-    let mut direction = Vec2::ZERO;
-
-    if buttons_pressed.contains(InputButton::Up) {
-        direction.y += 1.;
-    }
-
-    if buttons_pressed.contains(InputButton::Down) {
-        direction.y -= 1.;
-    }
-
-    if buttons_pressed.contains(InputButton::Left) {
-        direction.x -= 1.;
-    }
-
-    if buttons_pressed.contains(InputButton::Right) {
-        direction.x += 1.;
-    }
-
-    let move_delta = direction.normalize_or_zero() * PLAYER_SPEED * time.delta_secs();
-    player.translation += move_delta.extend(0.);
-
-    if direction.x > 0. {
-        player_sprite.flip_x = true;
-    } else if direction.x < 0. {
-        player_sprite.flip_x = false;
-    }
-}
-
-fn follow_player(
-    mut camera: Single<&mut Transform, (With<Camera2d>, Without<PlayerVWBus>)>,
-    player: Single<&Transform, (With<PlayerVWBus>, Without<Camera2d>)>,
-    time: Res<Time>,
-) {
-    let Vec3 { x, y, .. } = player.translation;
-    let direction = Vec3::new(x, y, camera.translation.z);
-
-    camera
-        .translation
-        .smooth_nudge(&direction, 10., time.delta_secs());
-}