I enjoy this game, but only play for a few minutes at a time. You get a nominal amount of coins, but it won't get you far. They rigged the game to continuously pop up buy coins, keys, etc. Which is very annoying. Add to that, they add new challenger islands (which are fun) for 3 day term, but everything on those islands will eat coins, hearts, and again those spend money pop-ups ruin this game. Too bad the talented developers are so money hungry.