diff --git a/src/gamecore.rs b/src/gamecore.rs
index ef7f71a..3eb8f20 100644
--- a/src/gamecore.rs
+++ b/src/gamecore.rs
@@ -17,7 +17,7 @@ pub enum GameState {
     MainMenu,
     PauseMenu,
     GameQuit,
-    InGame
+    InGame,
 }
 
 impl fmt::Display for GameState {
@@ -32,6 +32,7 @@ pub struct GameCore {
     pub state: GameState,
     pub last_state: GameState,
     pub last_state_change_time: f64,
+    pub last_frame_time: f64,
     pub has_rendered_first_frame: bool,
 
     /// Resources
@@ -56,6 +57,7 @@ impl GameCore {
             state: GameState::Loading,
             last_state: GameState::Loading,
             last_state_change_time: 0.0,
+            last_frame_time: 0.0,
             has_rendered_first_frame: false,
             resources: GlobalResources::load_all(raylib, thread)
                 .expect("Failed to load game assets. Can not launch!"),
@@ -67,7 +69,7 @@ impl GameCore {
             },
             show_simple_debug_info: false,
             world: world,
-            player: Player::new()
+            player: Player::new(),
         }
     }
 
diff --git a/src/logic/ingame/playerlogic.rs b/src/logic/ingame/playerlogic.rs
index 6dc036e..db01d5c 100644
--- a/src/logic/ingame/playerlogic.rs
+++ b/src/logic/ingame/playerlogic.rs
@@ -1,19 +1,22 @@
 use raylib::prelude::*;
 
-use crate::{
-    gamecore::GameCore,
-    pallette::{TRANSLUCENT_WHITE_128, TRANSLUCENT_WHITE_64},
-};
+use crate::{gamecore::GameCore, pallette::{TRANSLUCENT_WHITE_128, TRANSLUCENT_WHITE_64, TRANSLUCENT_WHITE_96}};
 
 const NORMAL_PLAYER_SPEED: i32 = 4;
 const BOOST_PLAYER_SPEED: i32 = NORMAL_PLAYER_SPEED * 2;
 const CAMERA_FOLLOW_SPEED: f32 = 0.7;
+const BOOST_DECREASE_PER_SECOND: f32 = 0.75;
+const BOOST_REGEN_PER_SECOND: f32 = 0.25;
+const BREATH_DECREASE_PER_SECOND: f32 = 0.01;
 
 pub fn update_player_movement(
     draw_handle: &mut RaylibDrawHandle,
     game_core: &mut GameCore,
     window_center: Vector2,
 ) {
+    // Calculate DT
+    let dt = draw_handle.get_time() - game_core.last_frame_time;
+
     // Handle player movement
     let mouse_pose = draw_handle.get_mouse_position();
     let mouse_world_pose = draw_handle.get_screen_to_world2D(mouse_pose, game_core.master_camera);
@@ -32,10 +35,21 @@ pub fn update_player_movement(
     let user_request_action = draw_handle.is_mouse_button_pressed(MouseButton::MOUSE_RIGHT_BUTTON);
 
     // Move the player in their direction
-    let speed_multiplier = match user_request_boost && game_core.player.boost_percent >= 0.0 {
-        true => BOOST_PLAYER_SPEED as f32,
-        false => NORMAL_PLAYER_SPEED as f32,
-    };
+    let speed_multiplier;
+    if user_request_boost && game_core.player.boost_percent >= 0.0 {
+        // Set the speed multiplier
+        speed_multiplier = BOOST_PLAYER_SPEED as f32;
+
+        // Decrease the boost
+        game_core.player.boost_percent -= BOOST_DECREASE_PER_SECOND * dt as f32;
+    } else {
+        // Set the speed multiplier
+        speed_multiplier = NORMAL_PLAYER_SPEED as f32;
+
+        // Handle boost regen
+        game_core.player.boost_percent =
+            (game_core.player.boost_percent + BOOST_REGEN_PER_SECOND * dt as f32).clamp(0.0, 1.0);
+    }
 
     // Only do this if the mouse is far enough away
     let player_real_movement = game_core.player.direction * speed_multiplier;
@@ -78,7 +92,7 @@ pub fn render_player(context_2d: &mut RaylibMode2D<RaylibDrawHandle>, game_core:
         0,
         (360.0 * player.breath_percent) as i32,
         0,
-        TRANSLUCENT_WHITE_128,
+        TRANSLUCENT_WHITE_96,
     );
 
     // TODO: tmp rect
diff --git a/src/main.rs b/src/main.rs
index 50cc74d..c0ede7f 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -149,6 +149,9 @@ fn main() {
 
         // Set the first frame flag
         game_core.has_rendered_first_frame = true;
+
+        // Update the frame time
+        game_core.last_frame_time = draw_handle.get_time();
     }
 
     // Cleanup
diff --git a/src/pallette.rs b/src/pallette.rs
index 2517a57..9d70e98 100644
--- a/src/pallette.rs
+++ b/src/pallette.rs
@@ -7,6 +7,13 @@ pub const TRANSLUCENT_WHITE_128: Color = Color {
     a: 128,
 };
 
+pub const TRANSLUCENT_WHITE_96: Color = Color {
+    r: 255,
+    g: 255,
+    b: 255,
+    a: 96,
+};
+
 pub const TRANSLUCENT_WHITE_64: Color = Color {
     r: 255,
     g: 255,