konami.js

$(function () {
    // konami code - up up down down left right left right b a
    var konami = String.fromCharCode(38, 38, 40, 40, 37, 39, 37, 39, 66, 65);
    var codeBuffer = "";
    $(document).keyup(function (e) {
        codeBuffer += String.fromCharCode(e.which);
        if (konami.substring(0, codeBuffer.length) == codeBuffer) {
            if (konami.length == codeBuffer.length) {
                ba();
            }
        } else {
            codeBuffer = "";
        }
    });

    function ba() {
        // do awesome
    }
});