User blog comment:Eitan101/Cant Beat Eater of Worlds/@comment-71.251.81.92-20120211233532/@comment-4769171-20120214145305

You can only get the Ball'o'Hurt by breaking the Shadow Orbs, so there is a chance he cannot get one before he summons the Eater of Worlds. But seeing as how he finally killed him, this post doesn't really matter.