diff --git a/scripts/objects/home_button.gd b/scripts/objects/home_button.gd
index 300c0cd..d3fa1a1 100644
--- a/scripts/objects/home_button.gd
+++ b/scripts/objects/home_button.gd
@@ -1,21 +1,35 @@
 ## HomeButton — tappable button that navigates between the hospital and the garden area.
+## go_to_garden = true calls RoomNavigator.go_to_home(); false calls RoomNavigator.go_to_hospital().
 class_name HomeButton extends Node2D
 
 const BUTTON_HALF_SIZE: float = 32.0
 
 @export var go_to_garden: bool = true
 
+var _busy: bool = false
+
 
 func _input(event: InputEvent) -> void:
+	if _busy:
+		return
 	if not event is InputEventScreenTouch:
 		return
-	if not (event as InputEventScreenTouch).pressed:
+	var touch: InputEventScreenTouch = event as InputEventScreenTouch
+	if not touch.pressed:
 		return
-	var touch_pos: Vector2 = (event as InputEventScreenTouch).position
-	var local: Vector2 = to_local(touch_pos)
+	var local: Vector2 = to_local(touch.position)
 	if abs(local.x) > BUTTON_HALF_SIZE or abs(local.y) > BUTTON_HALF_SIZE:
 		return
+	if not is_instance_valid(RoomNavigator):
+		return
+	_busy = true
 	if go_to_garden:
+		RoomNavigator.home_entered.connect(_on_transition_done, CONNECT_ONE_SHOT)
 		RoomNavigator.go_to_home()
 	else:
+		RoomNavigator.hospital_entered.connect(_on_transition_done, CONNECT_ONE_SHOT)
 		RoomNavigator.go_to_hospital()
+
+
+func _on_transition_done() -> void:
+	_busy = false