How to Unlock Cosmo Pavone Secret Character in Vampire Survivors

This seems fairly simple at first

Vampire Survivors Cosmo Pavone: How To Unlock This Character?

Vampire Survivors patch adds cheat codes and new characters like Big Trousers

Leda, Vampire Survivors Wiki

About: Vampire Survivors Companion (iOS App Store version)

How to unlock all secret characters in Vampire Survivors

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Vampire Survivors cheat codes explained

Vampire Survivors: How to Unlock All of the Secret Characters