From Treasure Adventure World Wiki
|Description:||Very generic shaped coin shaped coin: From an unknown realm
Coin Numi is a numi which can be found in a Angeloak Island tree.
The Coin Numi is found on Angeloak Island in the roots of the tree in the first area. You must look for a little opening before you enter the large tree.
This numi appearance resembles a coin, the currency in the Mario video game series.