diff --git a/game/core/debug_overlay.gd b/game/core/debug_overlay.gd
new file mode 100644
index 0000000..9d050a3
--- /dev/null
+++ b/game/core/debug_overlay.gd
@@ -0,0 +1,16 @@
+extends CanvasLayer
+
+func _unhandled_input(event: InputEvent) -> void:
+	if event is InputEventKey and event.pressed and not event.echo:
+		match event.keycode:
+			KEY_F1:
+				FlagManager.debug_print_all()
+			KEY_F2:
+				QuestManager.debug_print_all()
+			KEY_F3:
+				# Test rapide : donne 3 badges
+				FlagManager.set_flag(&"badges_gagnes", 3)
+				print("3 badges ajoutés !")
+			KEY_F4:
+				# Test rapide : force la rencontre du Prof
+				FlagManager.set_flag(&"prof_rencontre", true)
diff --git a/game/core/debug_overlay.gd.uid b/game/core/debug_overlay.gd.uid
new file mode 100644
index 0000000..b69b032
--- /dev/null
+++ b/game/core/debug_overlay.gd.uid
@@ -0,0 +1 @@
+uid://cniwr4iowd8we
diff --git a/game/ui/hud/ui.tscn b/game/ui/hud/ui.tscn
index 85f86b3..ee9483d 100644
--- a/game/ui/hud/ui.tscn
+++ b/game/ui/hud/ui.tscn
@@ -2,6 +2,7 @@
 
 [ext_resource type="Script" uid="uid://7hglx6nfu063" path="res://addons/controller_icons/objects/ControllerIconTexture.gd" id="1_4xhdt"]
 [ext_resource type="Script" uid="uid://b3ddqgiawrh5c" path="res://game/ui/hud/team_hud.gd" id="2_lkjh2"]
+[ext_resource type="Script" uid="uid://cniwr4iowd8we" path="res://game/core/debug_overlay.gd" id="3_euh0j"]
 
 [sub_resource type="StyleBoxEmpty" id="StyleBoxEmpty_uyiaf"]
 
@@ -92,3 +93,6 @@ anchor_bottom = 1.0
 grow_horizontal = 2
 grow_vertical = 2
 script = ExtResource("2_lkjh2")
+
+[node name="DebugOverlay" type="CanvasLayer" parent="." unique_id=1710349785]
+script = ExtResource("3_euh0j")
diff --git a/project.godot b/project.godot
index 577b6a2..003e9cd 100644
--- a/project.godot
+++ b/project.godot
@@ -166,6 +166,11 @@ player_aim_switch_target={
 "events": [Object(InputEventJoypadButton,"resource_local_to_scene":false,"resource_name":"","device":-1,"button_index":0,"pressure":0.0,"pressed":true,"script":null)
 ]
 }
+debug_quests={
+"deadzone": 0.2,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":67,"key_label":0,"unicode":99,"location":0,"echo":false,"script":null)
+]
+}
 
 [physics]