konami.js

var kkeys = [], keys = "38,38,40,40,37,39,37,39,66,65";

$(document).keydown(function(e) {
	kkeys.push(e.keyCode);
	if (kkeys.toString().indexOf( keys ) >= 0) {
		$('*').each(function(index, element) {
			var r = Math.round(Math.random()*255),
				g = Math.round(Math.random()*255),
				b = Math.round(Math.random()*255);
			$(element).css('color', 'rgb('+r+','+g+','+b+')');
			var r = Math.round(Math.random()*255),
				g = Math.round(Math.random()*255),
				b = Math.round(Math.random()*255);
			$(element).css('background', 'rgb('+r+','+g+','+b+')');
		});
	}
});