Cheat for http://colorrun.pl/ (run in the console after starting) :P

colorrun.cheat.js

function hackThePlanet() {
	var colors = document.querySelectorAll('.color'),
	    values = [];

	for(var i = 0; i < colors.length; i++) {
		var rgb = colors[i].style.backgroundColor;
		values[i] = 0;

		rgb.replace(/[^\d,]+/g, '')
			.split(',')
			.forEach(function(j) {
				values[i] += +j;
			});
	}

	var largest = Math.max.apply(Math, values),
	    index   = values.indexOf(largest),
	    target  = colors[index];

	console.log(values, index);
	target.click();
}

setInterval(hackThePlanet, 50);