How To unlock the Final Emperor in Vampire Survivors

To unlock the Final Emperor in Vampire Survivors, you need to defeat his demon form (Malevolent Door Spirit) using either Bonnie Blair or Formina Franklyn in the Grelon area while playing on Inverse difficulty in the Inverse Emerald Diorama. Once defeated, you can purchase the character for 25,000 gold.Step-by-Step Unlock GuideSelect Character: Choose either Bonnie Blair or Formina Franklyn on the character selection screen.Note: If you are having trouble triggering the boss spawn or unlock using Formina, swap to Bonnie Blair, as many players find this method more consistent.Enable Inverse Mode: Before starting the run, make sure you have turned on the Inverse difficulty option.Load the Stage: Start a run in the Emerald Diorama stage.Find the Boss (Grelon): Head to the Grelon zone (often located at the top-left in the inverse layout, or you can use Mad Groove) and engage the boss.Defeat the Demon Form: Defeat the demon form of the Final Emperor during your run to unlock him.Purchase the Character: Go to your character roster and buy the Final Emperor for 25,000 gold.