diff --git a/evolve-die-repeat/game_manager.gd b/evolve-die-repeat/game_manager.gd
index 490f2ca..1c86974 100644
--- a/evolve-die-repeat/game_manager.gd
+++ b/evolve-die-repeat/game_manager.gd
@@ -4,6 +4,12 @@ var screen_size = Vector2(1920.0, 1080.0)  # Default screen size (this is a floa
 var viewport_size
 @onready var extent: Rect2 = get_viewport().get_visible_rect()
 
+# Main menu & game spawning
+@onready
+var mainMenuScene = preload("res://main_menu.tscn").instantiate()
+@onready
+var gameScene = preload("res://molecular/molecular_stage.tscn").instantiate()
+
 # utils.
 var rng = RandomNumberGenerator.new()
 var eps: float = 1e-4
@@ -23,8 +29,12 @@ var t: float = 0.0
 
 
 func _ready() -> void:
+	# Create viewport
 	viewport_size = get_viewport().get_visible_rect().size
 	
+	# Create game (main menu)
+	add_child(mainMenuScene)
+	
 	# initial world current
 	get_new_flow()
 
@@ -35,6 +45,9 @@ func _physics_process(delta: float) -> void:
 	if abs(fmod(t, flowT)) < eps:
 		get_new_flow()
 	
+func start_game() -> void:
+	remove_child(mainMenuScene)
+	add_child(gameScene)
 
 # TODO: This needs to be called from a script inheriting a CharacterBody2D (e.g. the player)
 # Alternative would be to pass the player reference to this script (which might be better?)
diff --git a/evolve-die-repeat/main_menu.gd b/evolve-die-repeat/main_menu.gd
index 9543074..c2533a1 100644
--- a/evolve-die-repeat/main_menu.gd
+++ b/evolve-die-repeat/main_menu.gd
@@ -2,4 +2,4 @@ extends Control
 
 
 func _on_play_button_pressed() -> void:
-	get_tree().change_scene_to_file("res://molecular/molecular_stage.tscn")
+	GameManager.start_game()
diff --git a/evolve-die-repeat/main_scene.tscn b/evolve-die-repeat/main_scene.tscn
new file mode 100644
index 0000000..0cf795c
--- /dev/null
+++ b/evolve-die-repeat/main_scene.tscn
@@ -0,0 +1,6 @@
+[gd_scene format=3 uid="uid://b8gt8os2m28lv"]
+
+[ext_resource type="Script" uid="uid://vsbibc5fanou" path="res://game_manager.gd" id="1_0f027"]
+
+[node name="MainScene" type="Node" unique_id=1897047571]
+script = ExtResource("1_0f027")
diff --git a/evolve-die-repeat/project.godot b/evolve-die-repeat/project.godot
index 4486875..19ce05a 100644
--- a/evolve-die-repeat/project.godot
+++ b/evolve-die-repeat/project.godot
@@ -15,7 +15,7 @@ compatibility/default_parent_skeleton_in_mesh_instance_3d=true
 [application]
 
 config/name="EvolveDieRepeat"
-run/main_scene="uid://drgv154ei1vrl"
+run/main_scene="uid://b8gt8os2m28lv"
 config/features=PackedStringArray("4.6", "Forward Plus")
 config/icon="res://icon.svg"
 
@@ -25,7 +25,7 @@ GameManager="*res://game_manager.gd"
 
 [editor_plugins]
 
-enabled=PackedStringArray("res://addons/godot-neovim/plugin.cfg")
+enabled=PackedStringArray()
 
 [global_group]