In order to unlock her as a playable character, the player is first required to beat the entirety of the Dissidia 012 storyline, then complete the first chapter of the 013 story. After this has been accomplished, the player will need to go to the "Reports" section and beat all of the scenarios in "Report 8". Doing all of this will unlock both Prishe and Gilgamesh in the PP Store for purchase as playable characters, which costs 300 PP each.