anchor.diff:  }
   
   // fullscreen function
  -function gofull() {
  -  if (game.scale.isFullScreen){
  -    game.scale.stopFullScreen();
  -  }else{
  -    game.scale.startFullScreen(false);
  -  }
  -}
  +function gofull() { game.scale.startFullScreen(false);}
positive.code: //= require application
  
  // create game environment
  var game = new Phaser.Game(600, 800, Phaser.AUTO, 'donut-knight', { preload: preload, create: create, update: update });
  
  // preload all assets
  function preload() {
  
negative.code:   };
  
    // create tile background using one frame from a spritesheet
  	game.add.tileSprite(0, 0, 600, 600, 'background', 8);
  
    // create instructional text
    createText();
  