Konami Code implementation for JavaScript with touchscreen support.
https://zbicin.github.io/konami-code-js
The demo file in docs is pretty self explanatory and I totally recommend reading through it. However, if you are impatient:
<script type="text/javascript" src="../lib/konami-code.min.js"></script>
<script type="text/javascript">
function onKonamiCode() {
console.log('konami code!');
}
function onKonamiCodeGesture(event) {
console.log(event.detail.name);
}
document.addEventListener('konamiCode', onKonamiCode);
document.addEventListener('konamiCodeGesture', onKonamiCodeGesture);
</script>