First off, Paragon is free to play. So you can just download it from the PS Store. What you are buying here is Challenge Unlocks for a few characters, some skins, and 6,000 in game coins. Like any other freemium game, none of these are required for basic play, but they do make progression easier. BTW the game installs on your system, once you redeem the code you can throw the whole package out.