The process might not be super troublesome, but you have to contact the guys running the website, they ask you to make sure you are following best procedures to keep the size small, and then if you still want it, they'll get back to you after evaluating your project. Since I didn't go all the way through, I am unsure what requirements they have in mind, but I figured that since I don't sell the game here, it's probably not fair to ask for more space anyway.