Short Guide on How to Unlock the Relic Gracia's Mirror in Vampire Survivors.
Gracia's Mirror is a relic that can be found on the stage Eudaimonia Machine. Once collected, it permanently unlocks Inverse Mode in the stage selection menu, which transforms a stage into a harder version of itself.
To unlock Gracia's Mirror, you will need access to the Eudaimonia Machine stage, which unlocks after obtaining all Standard Relics from every stage.
To obtain the relic, enter the Eudaimonia Machine stage and approach The Director. He will present you with a question and two options. Choose the left option labeled "Too Easy" to receive the Gracia's Mirror relic. Subsequently, you'll be returned to the main menu with everything inverted, indicating that Inverse Mode is now available.
Note: If you selected the other option, you'll need to enter a different stage. After doing so, the Eudaimonia Machine stage will become available again. Simply enter it once more, talk to the Director again, and Gracia's Mirror will be automatically unlocked.
If you prefer, you can unlock Gracia's Mirror using a cheat code. Simply access the Secrets menu, which you can find in the main menu if you've unlocked The Forbidden Scrolls Of Morbane. Then, enter the code 'freezearrow' and you will have Gracia's Mirror unlocked.