diff --git a/main.tscn b/main.tscn
index 5e12084..57db7ad 100644
--- a/main.tscn
+++ b/main.tscn
@@ -49,6 +49,14 @@ func _unhandled_input(event):
 			DisplayServer.window_set_mode(DisplayServer.WINDOW_MODE_WINDOWED)
 		else:
 			DisplayServer.window_set_mode(DisplayServer.WINDOW_MODE_FULLSCREEN)
+
+	# switch mouse mode
+	if OS.is_debug_build() and Input.is_action_just_pressed(\"toggle_mouse_capture\"):
+		if Input.mouse_mode == Input.MOUSE_MODE_VISIBLE:
+			Input.mouse_mode = Input.MOUSE_MODE_CAPTURED
+		elif Input.mouse_mode == Input.MOUSE_MODE_CAPTURED:
+			Input.mouse_mode = Input.MOUSE_MODE_VISIBLE
+
 "
 
 [node name="Game" type="Node3D"]
diff --git a/project.godot b/project.godot
index 252ddcb..68f8383 100644
--- a/project.godot
+++ b/project.godot
@@ -75,6 +75,11 @@ fire_primary={
 "events": [Object(InputEventMouseButton,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"button_mask":0,"position":Vector2(0, 0),"global_position":Vector2(0, 0),"factor":1.0,"button_index":1,"canceled":false,"pressed":false,"double_click":false,"script":null)
 ]
 }
+toggle_mouse_capture={
+"deadzone": 0.5,
+"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":4194332,"key_label":0,"unicode":0,"echo":false,"script":null)
+]
+}
 
 [layer_names]