Putting aside the difference in the overall gameplay of Dirge Of Cerberus (as compared to previous Final Fantasy VII Titles), Dirge Of Cerberus still involves similar elements. Such elements include standard RPG attributes, Limit Breaks etc. But something new here is the addition of "Capsules". Capsules are secrets that are scattered around each level (including secret missions). Each Capsule that you destroy will unlock a secret in the Extra's menu.

Below, you will find a list of which capsules unlock which type of secret, and how to destroy each capsule.