These quests feature some of the most difficult battles in the game and provide exclusive demon fusions. Clipped Wings 1 : A battle against Archangels Clipped Wings 2 : A battle against Archangels Ancient One of the Sun : A quest to defeat the Ancient of Days , unlocking him for fusion. The Eternal Youth : A quest to defeat Sanat Kumara , unlocking Chaos Sanat for fusion. For the Past... For the Future : The ultimate challenge against , considered one of the hardest bosses in the game. Equipment & Cosmetic DLC
Nintendo 3DS titles and their DLC use a system-unique encryption key. When you download DLC from the eShop, your specific 3DS console decrypts it on-the-fly using a key tied to your console’s unique ID (the "movable.sed" file). shin megami tensei iv dlc update decrypted