Originally Posted by Foyn

hot :3

btw how does that coin boost work, clicked it nothing happened :?
http://i.imgur.com/we4oBcP.jpg

It costs 100 Nutaku Gold to use.
When you use it, the coins earned from doing maps increases by 50%, so on (for example) the 80 stamina Coin Rush map, you'd gather the usual avarage of 20k coins, which then gets multiplied to 30k coins.

Coin Boost is useful if you're short on gold coins, and are prepared to run the Coin Rush map (or some other map that yields a lot of gold) a LOT within the hour, for example, bacause you start out with full stamina and know you're going to level up just as it depletes, or plan to use a flower gem to refill stamina once it depletes.
Because of how often you can play Coin Rush depends on how much maximum stamina you have, higher level players probably get a way better deal out of it (320 max stamina means 320/80 = 4 Coin Rush visits, while 290 stamina means 290/80 = 3.63 -> 3 Coin Rush visits).