Short Guide on How to Unlock the Secret Character Peppino in Vampire Survivors.
To unlock Peppino, you will first require the Celestial Dusting weapon, which you can get by unlocking the character O'Sole. If you haven't done so already, you can unlock him by by killing a total of 3000 Dragon Shrimp or by using the cheat code 'reset' if you have unlocked The Forbidden Scrolls of Morbane.
To unlock Peppino, simply enter the Il Molise stage with the character O'Sole and start running through the plants. The Celestial Dusting weapon will not damage the plants but instead heal them. Once you have restored 100,000 health points to the plants, a short jingle will play, signaling that you have unlocked Peppino.
Note: You can use any character you wish as long as you get the Celestial Dusting weapon, but it's by far the easiest with O'Sole, as he does not take damage from the plants.
If you prefer, you can unlock Peppino 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 'pinociampino' and you will have Peppino unlocked.