The gameplay seems to be designed on the principle of keeping your attention and getting you to waste your time, at the expense of being interesting or enjoyable. What's more, the ad for this game is unskippable. By that, I mean that, even once the ad is done, it's impossible to close it and continue playing the game on which it appeared. There's no x button, no indication of the ad progressing, the only way to get rid of it is to close the app I was trying to use. Very annoying.