Added scene change to open up the game scene when pressing the start game button

Assets/scripts/game_window.gd

@@ -1,11 +1,7 @@
-extends Window
+extends Node
 
+var game = preload("res://Assets/game.tscn").instantiate()
 
-# Called when the node enters the scene tree for the first time.
-func _ready():
-	pass # Replace with function body.
-
-
-# Called every frame. 'delta' is the elapsed time since the previous frame.
-func _process(delta):
-	pass
+func _on_main_menu_start_game():
+	self.remove_child($"Main Menu")
+	self.add_child(game)