In the world of PlayStation 3 (PS3) emulation and homebrew, a (Registry Access Pass) acts as a digital license key required to decrypt and play content purchased from the PlayStation Store. For a popular title like Call of Duty: Black Ops 2 , having the base game or DLC files ( .pkg ) isn't enough; you must also have the corresponding .rap file to "unlock" the content. What is a Black Ops 2 RAP File?