How To get LunarBight to level 6 in Vampire Survivors

To get LunarBight to level 6 in Vampire Survivors, you must play as Spiritoso, trigger weapon drops by overhealing by 64 health, pick up LunarBight from the ground, and then level it up to 6 during the run. Overhealing spawns a random water or lunar weapon drop on the ground (including LunarMight, LunarSight, or LunarBight). Walk over the LunarBight item when it drops to add it to your active weapons.