gistfile1.js

/*

WARNING: THE CODE SUCKS.

*/

/* One-liner */

function a(e){var t=document.createEvent("Events");t.initEvent("keydown",true,true);t.which=e;document.dispatchEvent(t)}document.onkeypress=function(e){e=e||window.event;if(e.charCode=122){for(y=0;y<=100;y++){a(39);a(38);a(37);a(38)}}};var el=document.createElement("div");el.innerHTML="Press 'Z'";el.style.position="fixed";el.style.padding="12px";el.style.top="12px";el.style.left="12px";document.body.appendChild(el)



/* Prettier version */

function a(e) {
	var t = document.createEvent("Events");
	t.initEvent("keydown", true, true);
	t.which = e;
	document.dispatchEvent(t)
}
document.onkeypress = function (e) {
	e = e || window.event;
	if (e.charCode = 122) {
		for (y = 0; y <= 100; y++) {
			a(39);
			a(38);
			a(37);
			a(38)
		}
	}
};
var el = document.createElement("div");
el.innerHTML = "Press 'Z'";
el.style.position = "fixed";
el.style.padding = "12px";
el.style.top = "12px";
el.style.left = "12px";
document.body.appendChild(el)