You're browsing the GameFAQs Message Boards as a guest. Sign Up for free (or Log In if you already have an account) to be able to post messages, change how messages are displayed, and view media in posts.
These two actions appear to have the same input. How do you choose which one to do? All of the guides say they are both done by pressing X right before an enemy attacks. But it's possible to do a rolling thunder even if you're unarmed.