Vampire Survivors

Keitha Muort can be unlocked as a playable character once you evolve the Eskizzibur to evolve this weapon combine the Eskizzibur (Level 8) with Armour (Level 5).

Once you have unlocked the character simply load in to any level you are comfortable with and survive 15 minutes, you can quit out after the 15 minutes or continue your run until you die.