diff --git a/first_2d_game/HUD.gd b/first_2d_game/HUD.gd
new file mode 100644
index 0000000..820bf8b
--- /dev/null
+++ b/first_2d_game/HUD.gd
@@ -0,0 +1,34 @@
+extends CanvasLayer
+
+
+# Notifies `Main` node that the button has been pressed
+signal start_game
+
+
+func show_message(text):
+	$Message.text = text
+	$Message.show()
+	$MessageTimer.start()
+
+
+func show_game_over():
+	show_message('Game Over')
+	await $MessageTimer.timeout
+
+	$Message.text = 'Dodge the Creeps!'
+	$Message.show()
+	await get_tree().create_timer(1.0).timeout
+	$StartButton.show()
+
+
+func update_score(score):
+	$ScoreLabel.text = str(score)
+
+
+func _on_start_button_pressed():
+	$StartButton.hide()
+	start_game.emit()
+
+
+func _on_message_timer_timeout():
+	$Message.hide()
diff --git a/first_2d_game/HUD.tscn b/first_2d_game/HUD.tscn
new file mode 100644
index 0000000..9f7df77
--- /dev/null
+++ b/first_2d_game/HUD.tscn
@@ -0,0 +1,63 @@
+[gd_scene load_steps=3 format=3 uid="uid://caxwerqlguyo7"]
+
+[ext_resource type="Script" path="res://HUD.gd" id="1_cp6uc"]
+[ext_resource type="FontFile" uid="uid://dgjjxafsbuvej" path="res://fonts/Xolonium-Regular.ttf" id="1_pbe0f"]
+
+[node name="HUD" type="CanvasLayer"]
+script = ExtResource("1_cp6uc")
+
+[node name="ScoreLabel" type="Label" parent="."]
+anchors_preset = 5
+anchor_left = 0.5
+anchor_right = 0.5
+offset_left = -22.5
+offset_right = 22.5
+offset_bottom = 78.0
+grow_horizontal = 2
+theme_override_fonts/font = ExtResource("1_pbe0f")
+theme_override_font_sizes/font_size = 64
+text = "0"
+horizontal_alignment = 1
+vertical_alignment = 1
+
+[node name="Message" type="Label" parent="."]
+anchors_preset = 8
+anchor_left = 0.5
+anchor_top = 0.5
+anchor_right = 0.5
+anchor_bottom = 0.5
+offset_left = -240.0
+offset_top = -79.5
+offset_right = 240.0
+offset_bottom = 79.5
+grow_horizontal = 2
+grow_vertical = 2
+theme_override_fonts/font = ExtResource("1_pbe0f")
+theme_override_font_sizes/font_size = 64
+text = "Dodge the Creeps!"
+horizontal_alignment = 1
+vertical_alignment = 1
+autowrap_mode = 2
+
+[node name="StartButton" type="Button" parent="."]
+anchors_preset = 7
+anchor_left = 0.5
+anchor_top = 1.0
+anchor_right = 0.5
+anchor_bottom = 1.0
+offset_left = -100.0
+offset_top = -140.0
+offset_right = 100.0
+offset_bottom = -40.0
+grow_horizontal = 2
+grow_vertical = 0
+theme_override_fonts/font = ExtResource("1_pbe0f")
+theme_override_font_sizes/font_size = 64
+text = "Start"
+
+[node name="MessageTimer" type="Timer" parent="."]
+wait_time = 2.0
+one_shot = true
+
+[connection signal="pressed" from="StartButton" to="." method="_on_start_button_pressed"]
+[connection signal="timeout" from="MessageTimer" to="." method="_on_message_timer_timeout"]
diff --git a/first_2d_game/Main.gd b/first_2d_game/Main.gd
index 46617b4..5b0fb83 100644
--- a/first_2d_game/Main.gd
+++ b/first_2d_game/Main.gd
@@ -36,6 +36,7 @@ func _on_mob_timer_timeout():
 
 func _on_score_timer_timeout():
 	score += 1
+	$HUD.update_score(score)
 
 
 func _on_start_timer_timeout():
@@ -46,9 +47,13 @@ func _on_start_timer_timeout():
 func game_over():
 	$ScoreTimer.stop()
 	$MobTimer.stop()
+	$HUD.show_game_over()
 
 
 func new_game():
 	score = 0
 	$Player.start($StartPosition.position)
 	$StartTimer.start()
+	$HUD.update_score(score)
+	$HUD.show_message('Get Ready')
+	get_tree().call_group('mobs', 'queue_free')
diff --git a/first_2d_game/Main.tscn b/first_2d_game/Main.tscn
index b6b3154..13bd2e8 100644
--- a/first_2d_game/Main.tscn
+++ b/first_2d_game/Main.tscn
@@ -1,8 +1,9 @@
-[gd_scene load_steps=5 format=3 uid="uid://dmuja863phygg"]
+[gd_scene load_steps=6 format=3 uid="uid://dmuja863phygg"]
 
 [ext_resource type="PackedScene" uid="uid://ckfhsdod4ghug" path="res://Player.tscn" id="1_4p8ah"]
 [ext_resource type="Script" path="res://Main.gd" id="1_ftc8b"]
 [ext_resource type="PackedScene" uid="uid://df0p8vv7unjvu" path="res://Mob.tscn" id="2_sjjbm"]
+[ext_resource type="PackedScene" uid="uid://caxwerqlguyo7" path="res://HUD.tscn" id="4_5inpl"]
 
 [sub_resource type="Curve2D" id="Curve2D_7kfby"]
 _data = {
@@ -33,7 +34,10 @@ curve = SubResource("Curve2D_7kfby")
 
 [node name="MobSpawnLocation" type="PathFollow2D" parent="MobPath"]
 
+[node name="HUD" parent="." instance=ExtResource("4_5inpl")]
+
 [connection signal="hit" from="Player" to="." method="game_over"]
 [connection signal="timeout" from="MobTimer" to="." method="_on_mob_timer_timeout"]
 [connection signal="timeout" from="ScoreTimer" to="." method="_on_score_timer_timeout"]
 [connection signal="timeout" from="StartTimer" to="." method="_on_start_timer_timeout"]
+[connection signal="start_game" from="HUD" to="." method="new_game"]
diff --git a/first_2d_game/Mob.tscn b/first_2d_game/Mob.tscn
index ef218fc..0905560 100644
--- a/first_2d_game/Mob.tscn
+++ b/first_2d_game/Mob.tscn
@@ -48,7 +48,7 @@ animations = [{
 radius = 36.0
 height = 96.0
 
-[node name="Mob" type="RigidBody2D"]
+[node name="Mob" type="RigidBody2D" groups=["mobs"]]
 collision_mask = 0
 gravity_scale = 0.0
 script = ExtResource("1_ruw5w")
diff --git a/first_2d_game/project.godot b/first_2d_game/project.godot
index 95ee8e1..0b0a3bf 100644
--- a/first_2d_game/project.godot
+++ b/first_2d_game/project.godot
@@ -11,6 +11,7 @@ config_version=5
 [application]
 
 config/name="First 2d Game"
+run/main_scene="res://Main.tscn"
 config/features=PackedStringArray("4.2", "GL Compatibility")
 config/icon="res://icon.svg"