Gear Coin

Gear Coin is a type of currency unit in Zenless Zone Zero. They are gained during Hollow Exploration. 
==Acquisition==
The most common way to acquire Gear Coins is reaching a Gear Coin Area on the H.D.D. "chessboard", the amount available varies between exploration stages of a Hollow, but a Gear Coin Area showing double coins instead of the usual one gives you more. Alternatively, a Golden Bangboo encountered in any part the Hollow will yield Gear Coins when attacked or killed (depending on stage setting).
The amount of Gear Coin of each Exploration is independent. Clearing, retiring, and retrying the Exploration resets the amount of Gear Coins.
== Usage ==
One common use is to unlock specific type of doors, the required amount is usually in hundreds or thousands, but could be as small as one in special cases. Other usages include buying from vendors (usually Hollow Raiders or Bangboo) or upgrading facilities like cannons in some exploration levels.
==Other Languages==
==Navigation==