Persona 3 Reload features several miniboss encounters that regularly test the player's limits. From very early in the player's journey up the massive tower of Tartarus, powerful shadows will emerge to act as a sort of barrier, ensuring the party is truly ready to move on to the floor above. While all these enemies present serious challenges, very few are as tough as the bosses that are encountered during Persona 3 Reload's Monad Door Challenges.