diff --git a/main.gd b/main.gd
index fae2c76..03b3459 100644
--- a/main.gd
+++ b/main.gd
@@ -1,11 +1,55 @@
 extends Node
 
+@export var mob_scene: PackedScene
+var score
+
 
 # Called when the node enters the scene tree for the first time.
 func _ready() -> void:
-	pass # Replace with function body.
+	new_game()
 
 
 # Called every frame. 'delta' is the elapsed time since the previous frame.
 func _process(delta: float) -> void:
 	pass
+
+
+func _on_player_hit() -> void:
+	pass # Replace with function body.
+	
+func game_over():
+	$ScoreTimer.stop()
+	$MobTimer.stop()
+	
+func new_game():
+	score = 0
+	$Player.start($StartPosition.position)
+	$StartTimer.start()
+
+
+func _on_mob_timer_timeout() -> void:
+	var mob = mob_scene.instantiate()
+	
+	var mob_spawn_location = $MobPath/MobSpawnLocation
+	mob_spawn_location.progress_ratio = randf()
+	
+	mob.position = mob_spawn_location.position
+	
+	var direction = mob_spawn_location.rotation + PI/2
+	
+	direction += randf_range(-PI/4, PI/4)
+	
+	mob.rotation = direction
+	
+	var velocity = Vector2(randf_range(150.0, 250.0), 0.0)
+	mob.linear_velocity = velocity.rotated(direction)
+	
+	add_child(mob)
+
+func _on_score_timer_timeout() -> void:
+	score += 1
+
+
+func _on_start_timer_timeout() -> void:
+	$MobTimer.start()
+	$ScoreTimer.start()
diff --git a/main.tscn b/main.tscn
index b4b2b3a..968b7a3 100644
--- a/main.tscn
+++ b/main.tscn
@@ -1,6 +1,8 @@
 [gd_scene format=3 uid="uid://62ecirhdonkh"]
 
+[ext_resource type="Script" uid="uid://40xnax86ff5v" path="res://main.gd" id="1_h2yge"]
 [ext_resource type="PackedScene" uid="uid://jb11l53ss1a5" path="res://player.tscn" id="1_ig7tw"]
+[ext_resource type="PackedScene" uid="uid://dbqx3rs3h3hfp" path="res://mob.tscn" id="2_1bvp3"]
 
 [sub_resource type="Curve2D" id="Curve2D_ig7tw"]
 _data = {
@@ -9,6 +11,8 @@ _data = {
 point_count = 5
 
 [node name="Main" type="Node" unique_id=1884465277]
+script = ExtResource("1_h2yge")
+mob_scene = ExtResource("2_1bvp3")
 
 [node name="Player" parent="." unique_id=1124984874 instance=ExtResource("1_ig7tw")]
 
@@ -28,3 +32,8 @@ position = Vector2(240, 450)
 curve = SubResource("Curve2D_ig7tw")
 
 [node name="MobSpawnLocation" type="PathFollow2D" parent="MobPath" unique_id=1309929511]
+
+[connection signal="hit" from="Player" to="." method="_on_player_hit"]
+[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"]
diff --git a/project.godot b/project.godot
index 56886d4..7a6a77f 100644
--- a/project.godot
+++ b/project.godot
@@ -11,7 +11,7 @@ config_version=5
 [application]
 
 config/name="Warmup"
-run/main_scene="uid://jb11l53ss1a5"
+run/main_scene="uid://62ecirhdonkh"
 config/features=PackedStringArray("4.6", "GL Compatibility")
 config/icon="res://icon.svg"