register a function as an easter egg to be called when the konami code is entered.

konami code: ↑ ↑ ↓ ↓ ← → ← → b a ⏎

Just add konami script in your page and register an easter egg function like so:

var myEasterEgg = function () {
  // something nifty
};

konami(myEasterEgg);

• Download source version.
• Download minified version.