In Persona 5, unlocking and managing Personas is a core aspect of gameplay that adds depth to both combat and the overall experience. The primary methods of acquiring new Personas involve fusing them in the Velvet Room or capturing Shadows located within the various Palaces and Mementos across the game. It’s worth noting that some Personas have specific requirements that must be met to unlock them, adding an element of strategy and exploration to the game.

Once you obtain a Persona, you can register it within your Persona Compendium, accessed through the Velvet Room. Registering a Persona not only allows you to keep track of all the Personas you’ve acquired—including their levels and abilities—but also enables you to summon or re-fuse them whenever needed, provided you have enough in-game currency. This feature is particularly valuable as it eliminates the repetitive task of having to re-capture or fuse Personas each time you wish to utilize them, facilitating a more dynamic and experimental approach to combat and team composition.

Additionally, Persona 5 offers the ability to purchase DLC Personas, which can also be registered in your Compendium. This provides players with the opportunity to enhance their roster further, although it’s important to note that these additional Personas do not contribute to the game’s completion rate.

In Persona 5 Royal, the gameplay experience is further enriched by additional features related to the Velvet Room. After reaching rank 5 with Justine and Caroline, the Velvet Room attendants, you gain the ability to fuse Personas that exceed your current level. This significantly broadens your strategic options, allowing you to access and utilize more powerful Personas sooner than previously possible.

Moreover, if you choose to enter New Game+, your Persona Compendium carries over, granting you immediate access to all previously unlocked Personas. This mechanic enhances replay value, as you can create varied strategies and experiment with different Persona combinations without the need to start from scratch.

Overall, the Persona Compendium system in Persona 5 and Persona 5 Royal is designed to encourage exploration, strategic planning, and creativity in building your team, making the acquisition and management of Personas one of the most compelling aspects of the game.