Game hack ( http://game.ioxapp.com/color/ )

lol.js

function searchBox() {
    var box = $("#box"); 
    if (box.length > 0) {
        var elements = box.find("span");
        var lvl = box.attr("class");
        for(var i = 0; i < elements.length - 1; i++) {
            if($(elements[i]).attr("style") != $(elements[i + 1]).attr("style")) {
                   $(elements[i]).click();
                   if(lvl == box.attr("class")) {
                       $(elements[i + 1]).click();
                   }
                   break;
            }
        }
        if(!$("#dialog").is(":visible")) {
            window.setTimeout(searchBox, Math.floor(Math.random() * 500) + 1);
        }
    }
};

Dude, try this) setInterval(function(){Game.nextLv()},1)

Nice.
I didn't look at the source code of the game. I just opened inspector and wrote this function (and I copied the code as-is in this gist, without any refactoring).