Here is how you can unlock the Big Trouser in Vampire Survivors, which is a secret character.
How to Unlock
1. Choose a character
2. Go to Moongolow
3. Now you must collect all of the upgrates lying around (The Rings& Metaglio parts as well as Torrona’s Box are not required) and upgrade all for them to max level.
4. After having all of them on max level you can quit or keep playing untill 15 min (but do not lose all your revivals on red death because it will destroy Tiragisu).
5. You will now be able to buy the character in the character selection screen
Trouser gains +1% Greed every level. There is no cap on this bonus. They also have longer Gold Fevers. Starts with weapon “Candybox”