Konamicode

jQuery Konami Code Plugin
by Kyle Bragger <kyle@kylebragger.com>
Created May 11, 2009
Do with it what you will.

Usage:

$(document).ready(function(){
    $('body').upUpDownDown({
        watchFor: [38,38,40,40,37,39,37,39,66,65], // Array of keyCode and charCodes to watch for
                                                   // This represents a sequence, ordered left (first) to right (last), so:
                                                   // [38,38,40,40,37,39,37,39,66,65] == up up down down left right left right B A, in that order
        callback: function(){
            // Do some fancy shit here.
        }
    });
});