diff --git a/jrpg/scenes/TestMain.tscn b/jrpg/scenes/TestMain.tscn
index f93d028..7dd8908 100644
--- a/jrpg/scenes/TestMain.tscn
+++ b/jrpg/scenes/TestMain.tscn
@@ -17,13 +17,6 @@ scenes = {
 
 [node name="CanvasLayer" type="CanvasLayer" parent="."]
 
-[node name="UI" type="Control" parent="CanvasLayer"]
-anchor_right = 1.0
-anchor_bottom = 1.0
-__meta__ = {
-"_edit_use_anchors_": false
-}
-
-[node name="HUD" parent="CanvasLayer/UI" instance=ExtResource( 7 )]
+[node name="HUD" parent="CanvasLayer" instance=ExtResource( 7 )]
 
-[node name="SpeechPanel" parent="CanvasLayer/UI" instance=ExtResource( 6 )]
+[node name="SpeechPanel" parent="CanvasLayer" instance=ExtResource( 6 )]
diff --git a/jrpg/scripts/entities/components/interactions/talk_interaction.gd b/jrpg/scripts/entities/components/interactions/talk_interaction.gd
index 8d19f1f..81f844c 100644
--- a/jrpg/scripts/entities/components/interactions/talk_interaction.gd
+++ b/jrpg/scripts/entities/components/interactions/talk_interaction.gd
@@ -2,9 +2,7 @@ extends BasisInteraction
 
 class_name TalkInteraction
 
-signal trigger_script
-
 var yarn_script : Resource
 
 func on_interact():
-	emit_signal("trigger_script", yarn_script)
+	EventDispatcher.emit_signal("trigger_script", yarn_script)
diff --git a/jrpg/scripts/entities/model/player_infos.gd b/jrpg/scripts/entities/model/player_infos.gd
index 2e850ee..f73a004 100644
--- a/jrpg/scripts/entities/model/player_infos.gd
+++ b/jrpg/scripts/entities/model/player_infos.gd
@@ -46,3 +46,8 @@ func gold_set(value):
 func gold_get():
 	return gold
 
+func reset():
+	curHp = maxHp
+	emit_signal("curHp_update", curHp)
+	gold = 0
+	emit_signal("gold_update", gold)
diff --git a/jrpg/scripts/levels/script_trigger.gd b/jrpg/scripts/levels/script_trigger.gd
index 6bad5b3..a1b7edd 100644
--- a/jrpg/scripts/levels/script_trigger.gd
+++ b/jrpg/scripts/levels/script_trigger.gd
@@ -1,12 +1,9 @@
 extends Area
 
-signal trigger_script
-
 export var yarnScript : Resource
 
 func enable():
 	self.connect("body_entered", self, "_on_TriggerArea_body_entered")
 
 func _on_TriggerArea_body_entered(body):
-	print("triggered")
-	emit_signal("trigger_script", yarnScript)
+	EventDispatcher.emit_signal("trigger_script", yarnScript)
diff --git a/jrpg/scripts/levels/spawner.gd b/jrpg/scripts/levels/spawner.gd
index f778e4d..301a460 100644
--- a/jrpg/scripts/levels/spawner.gd
+++ b/jrpg/scripts/levels/spawner.gd
@@ -4,13 +4,12 @@ export var character_data : Resource
 
 var interaction_component : BasisInteraction
 
-func spawn(level):
+func spawn():
 	var inst = character_data.scene.instance()
 	inst.name = character_data.name
 	if character_data.yarn != null:
 		interaction_component = TalkInteraction.new()
 		interaction_component.name = character_data.yarn.resource_name
 		interaction_component.yarn_script = character_data.yarn
-		interaction_component.connect("trigger_script", level, "trigger_script")
 		inst.add_child(interaction_component)
 	add_child(inst)
diff --git a/jrpg/scripts/levels/test_coins.gd b/jrpg/scripts/levels/test_coins.gd
index 6ab289b..1cda27f 100644
--- a/jrpg/scripts/levels/test_coins.gd
+++ b/jrpg/scripts/levels/test_coins.gd
@@ -1,14 +1,12 @@
 extends Node
 
-signal all_coins_picked_up
-
 export var coin_scene : PackedScene
 
 export var all_coins_picked_up_script : Resource
 
 var coins := -1
 
-func spawn(level):
+func spawn():
 	if coins < 0: # not spawned yet
 		coins = 0
 		for spawn in get_children():
@@ -16,9 +14,8 @@ func spawn(level):
 			coin.connect("picked_up", self, "on_coin_picked_up")
 			coins += 1
 			spawn.add_child(coin)
-		connect("all_coins_picked_up", level, "trigger_script")
 
 func on_coin_picked_up():
 	coins -= 1
 	if coins == 0:
-		emit_signal("all_coins_picked_up", all_coins_picked_up_script)
+		EventDispatcher.emit_signal("trigger_script", all_coins_picked_up_script)
diff --git a/jrpg/scripts/misc/controller.gd b/jrpg/scripts/misc/controller.gd
index f8c1c57..62d4a9b 100644
--- a/jrpg/scripts/misc/controller.gd
+++ b/jrpg/scripts/misc/controller.gd
@@ -1,5 +1,6 @@
 extends Node
 
+var hud : HUD
 var speech_panel : SpeechPanel
 
 var player_infos := PlayerInfos.new()
diff --git a/jrpg/scripts/misc/event_dispatcher.gd b/jrpg/scripts/misc/event_dispatcher.gd
new file mode 100644
index 0000000..c692ca5
--- /dev/null
+++ b/jrpg/scripts/misc/event_dispatcher.gd
@@ -0,0 +1,3 @@
+extends Node
+
+signal trigger_script
diff --git a/jrpg/scripts/misc/test_level.gd b/jrpg/scripts/misc/test_level.gd
index c204134..3b38ad0 100644
--- a/jrpg/scripts/misc/test_level.gd
+++ b/jrpg/scripts/misc/test_level.gd
@@ -9,11 +9,13 @@ func _ready():
 	yarnRunner.add_command("EnableTrigger", funcref(self, "enable_trigger"))
 	yarnRunner.add_command("Scene", funcref(self, "scene"))
 	
-	for trigger in $Triggers.get_children():
-		trigger.connect("trigger_script", self, "trigger_script")
+	EventDispatcher.connect("trigger_script", self, "trigger_script")
 	
-	trigger_script(init_yarn_script)
+	Controller.hud.show()
+	Controller.player_infos.reset()
 	
+	trigger_script(init_yarn_script)
+
 func spawn(args):
 	yield(get_tree(), "idle_frame")
 	
@@ -23,7 +25,7 @@ func spawn(args):
 	
 	var spawner = get_node("Spawners/" + args[0])
 	if spawner != null and spawner.has_method("spawn"):
-		spawner.spawn(self)
+		spawner.spawn()
 	else:
 		print("spawner " + args[0] + " not found or not compatible")
 	
@@ -65,3 +67,7 @@ func scene(args):
 	
 	print("Request new scene : " + args[0])
 	emit_signal("request_new_scene", args[0])
+
+func _exit_tree():
+	Controller.hud.hide()
+	Controller.speech_panel.hide()
diff --git a/jrpg/scripts/misc/test_main.gd b/jrpg/scripts/misc/test_main.gd
index f6fcc62..297940c 100644
--- a/jrpg/scripts/misc/test_main.gd
+++ b/jrpg/scripts/misc/test_main.gd
@@ -16,10 +16,6 @@ func load_scene(scene_key):
 		var scene = scenes[scene_key].instance()
 		scene.connect("request_new_scene", self, "load_scene")
 		$SceneContainer.add_child(scene)
-		if scene_key == "TestGameOver":
-			$CanvasLayer/UI.hide()
-		else:
-			$CanvasLayer/UI.show()
 
 func wait_signal(args):
 	yield(self, "end")
diff --git a/jrpg/scripts/ui/test_hud.gd b/jrpg/scripts/ui/test_hud.gd
index 3f380eb..11add1e 100644
--- a/jrpg/scripts/ui/test_hud.gd
+++ b/jrpg/scripts/ui/test_hud.gd
@@ -1,5 +1,7 @@
 extends Control
 
+class_name HUD
+
 export var healthBar_path : NodePath
 onready var healthBar = get_node(healthBar_path)
 export var goldText_path : NodePath
@@ -27,3 +29,6 @@ func fetch_components():
 		healthBar = get_node("HealthBar")
 	if goldText == null:
 		goldText = get_node("GoldText")
+
+func _enter_tree():
+	Controller.hud = self
diff --git a/project.godot b/project.godot
index f9b7886..df5dc41 100644
--- a/project.godot
+++ b/project.godot
@@ -29,6 +29,11 @@ _global_script_classes=[ {
 "language": "GDScript",
 "path": "res://jrpg/scripts/ui/choices_box.gd"
 }, {
+"base": "Control",
+"class": "HUD",
+"language": "GDScript",
+"path": "res://jrpg/scripts/ui/test_hud.gd"
+}, {
 "base": "KinematicBody",
 "class": "Player",
 "language": "GDScript",
@@ -84,6 +89,7 @@ _global_script_class_icons={
 "BasisInteraction": "",
 "CharacterData": "",
 "ChoicesBox": "",
+"HUD": "",
 "Player": "",
 "PlayerInfos": "",
 "SpeechPanel": "",
@@ -105,6 +111,7 @@ config/icon="res://icon.png"
 [autoload]
 
 Controller="*res://jrpg/scripts/misc/controller.gd"
+EventDispatcher="*res://jrpg/scripts/misc/event_dispatcher.gd"
 
 [editor_plugins]