Don’t bother
I found this game from another app where I could be rewarded in that app based on the coins received while playing. Sounded like a great way to have fun and earn, but unfortunately it is nothing but watching ads and then being cheated out of the coins you earn. Currently on level 21, having spent no coins at all, but showing I have only earned 501, even after doing all the bonuses for watching ads. It just closes the app as soon as you return from the ad so when you reopen it advances you to the next level but gives you zero coins. I even have a video of this “glitch”. Obviously it will be impossible for me to complete the goal in the allotted time at this rate- a complete waste of time!