Merets are a Premium currency in MapleStory 2. They are depicted as a blue mushroom , and your current amount of Merets are displayed in the upper-left corner of your screen.
The use of Merets can vary between travelling to an unexplored area of the map, designing a cool hat, and buying furniture, to changing your character hair style, and buying Outfit items.
Merets that are purchased can be retrieved from your in-game mailbox. Merets are region specific, and do not transfer between characters in different regions.
Remember to use the Meret Pouch found in your Misc. inventory tab to add them to your Meret Total!