If something is missing or damaged in your collection, we probably have it.
Like Shattered said, you can create as many 4shared accounts as you want. Just use a temporary Email service like Jetable, Spamgourmet, Yopmail...
About Lego Batman 2 you'll have to wait till at least 2015 to upload it, so there's a lot of other things you can do before, if you like.
Enjoy your stay here.