The 10 Gold Coin is an item which appears in Wario Land: Super Mario Land 3 and Wario Land II. It is worth ten individual coins.
In Wario Land: Super Mario Land 3[]
A 10 Gold Coin can be created from Wario's inventory from ten regular coins and thrown at enemies to attack them.
In Wario Land II[]
10 Gold Coins now depict Wario's face from the side, and is larger than other collectible coins. The 10 Gold Coin can no longer be used as a projectile. Given that it is more valuable, a 10 Gold Coin is often hidden in hard-to-reach areas.