index.html

<!DOCTYPE html>
<html>
    
<head>
  <meta charset="utf-8" />
  <title>Roy</title>

  <style>
    
    #game {
      width: 850px;
      margin: auto;
      margin-top: 50px;
    }

  </style>

  <script type="text/javascript" src="js/phaser-arcade-physics.min.js"></script>
  <script type="text/javascript" src="js/load.js"></script>
  <script type="text/javascript" src="js/menu.js"></script>
  <script type="text/javascript" src="js/level_3.js"></script>
  <script type="text/javascript" src="js/level_2.js"></script>
  <script type="text/javascript" src="js/level_1.js"></script>
  <script type="text/javascript" src="js/game.js"></script>
</head>

<body>

  <div id="game"> </div>

</body>

</html>