Coin

Coins (sometimes known as 1 Gold Coins or Yellow Coins, also called Mushroom Coins in the Beanbean Kingdom) are the main currency of the Mushroom Kingdom. They can be collected in most Mario games. They have varying effects depending on the game type: in platformer games they increase a player's score and grant extra lives; in racing games they increase speed and recovery times; and in RPGs they can be used to purchase items, all among other uses.