Nyan Hack

nyan.js

;(function ()
    {
        troubadourModeAchieved()
        overNyanThousandAchieved()
        
        var secs = prompt("How many seconds should I say you have nyaned for?"),
            mute = confirm("I'm going to mute the audio."),
            fire = confirm("I'm going to make the background change randomly.");
        
        startTime.setTime( currentTime.getTime() - parseInt(secs) );
        mute && soundManager.mute('loop');
        fire && setInterval( blowUpBackground, 150);
    }
)();

nyan.minified.js

(function(){troubadourModeAchieved(),overNyanThousandAchieved();var a=prompt("How many seconds should I say you have nyaned for?"),b=confirm("I\'m going to mute the audio."),c=confirm("I\'m going to make the background change randomly.");startTime.setTime(currentTime.getTime()-parseInt(a)),b&&soundManager.mute("loop"),c&&setInterval(blowUpBackground,150)})()