[1.7.3 update]
-Fixed an issue where the boss's invincible time didn't occur.(In the Duckstation)
[1.7.4 update]
-Adjusted Boss Damage.
-In the Armor selection window, sorted in order of Ultimate Armor→Zero.
In the Equip and Relic menus, you have the option to switch characters by pressing the L, R or Select buttons. However, you do not have the ability to instantly switch between the two menus; you have to exit to the main menu. This patch adds this as a new feature; all you have to do is press the Y button.