Action Puzzle INVESTOR INVADER

his is an action puzzle game which arranges coin with 2x2 and erases it in the same color and same currency by operation of "touch and slide".
Since a rate changes with the difference of the number of currency, let's enlarges the difference of the number of currency and let's get continuously in a combo. You will get money greatly.
When time passes, invasion of the investor who gets coin previously is made to back out by market price reversal.
It is a new feeling puzzle which arranges and erases coin, controlling the difference of the number of currency and fluctuating a market price.