The goal of this game is to gather coins of same value to upgrade to a more valuable coin. Finally, if you gather 5+ coins of 100 yen, the coin chain will disappear. And so on... They are two special coins (ER, RU) that allow you to upgrade (Rank Up) and erase (ERase) a specific kind of coin in the array.
![[5587]Money_Idol_Exchanger.png](https://gbatemp.net/screenshots/[5587]Money_Idol_Exchanger.png)