Short Guide on How to Unlock the Secret Character Mask of the Red Death in Vampire Survivors.
To unlock Red Death, you will first require the Yellow Sign relic. If you haven't got it already, check out our guide on How To Unlock Yellow Sign.
To unlock Red Death, you simply need to defeat The Reaper. This can be achieved through various strategies, but we will tell you about the most effective one.
Enter a stage and walk around to collect the Metaglio Left, Metaglio Right, Silver Ring, and Gold Ring passive items, which spawn in every stage if you have obtained the Yellow Sign relic. You also need the Clock Lancelot and Laurel weapons, which you can obtain by leveling up.
Once you've obtained both the weapons and the passive items, fully level them up, and then collect treasure chests, which will evolve the two weapons into the Crimson Shroud and the Infinite Corridor.
Once you have these two evolved weapons, simply wait for The Reaper to spawn at 30 minutes and then kill him, which should now be easily achievable with the Crimson Shroud and Infinite Corridor. After doing so, you will have unlocked the Mask of the Red Death.
If you prefer, you can unlock Red Death 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 'ablasphemousmockery' and you will have Red Death unlocked.