Coin

Coins are a universal currency found throughout the universe and its many dimensions. Their appearance in other dimensions suggests that their origin dates back thousands of years when inter-dimensional travel was prevalent among the Tribe of Ancients.

Description
"The Mushroom Kingdom is overflowing with coins. You'll find them hiding under question blocks, grass, enemies, and more."

- North American website

Coins are floating, golden, oval-shaped objects. They are used as the official currency of several locations, such as the Mushroom Kingdom, while other locations, such as the Metro Kingdom and the Cap Kingdom, use them as a secondary currency to their own regional coins.

The number "1" is displayed in the middle on both sides, showing its worth as just one coin regardless of its size. The true value of a gold coin is dependent on the number written on it, the highest being "100".

Next to Star Bits, coins are another type of food that Lumas like to eat, with their transformation working effectively the same.