Add tdfw.js as an Easter Egg to your page using the KONAMI CODE! Use this as src: https://rawgit.com/kutyel/5d23ee8d418320576e1d3e570c965c49/raw/db7f1242c0fb2f6fb029006c12d7e3f0f847b8a0/TDFW_KONAMI_CODE.js

TDFW_KONAMI_CODE.js

(function() {
  'use strict'
  var pressed = []
  var KONAMI_CODE = [
    'ArrowUp',
    'ArrowUp',
    'ArrowDown',
    'ArrowDown',
    'ArrowLeft',
    'ArrowRight',
    'ArrowLeft',
    'ArrowRight',
    'a',
    'b',
    'Enter'
  ]

  function tdfw () {
    var script = document.createElement('script')
    script.setAttribute('src', 'https://nthitz.github.io/turndownforwhatjs/tdfw.js')
    document.body.appendChild(script)
  }

  window.addEventListener('keyup', function (e) {
    pressed.push(e.key)
    pressed.splice(-KONAMI_CODE.length - 1, pressed.length - KONAMI_CODE.length)
    pressed.join().indexOf(KONAMI_CODE.join()) > -1 && tdfw()
  })
})()