Yes it’s a real thing I found out a long time ago. Just get to a point in the gane where you are rewarded coins for completing a set of missions, and then rapidly press the buttons that enter and leave the mission screen. You must do this while the reward animation is playing or else it won’t work. The moment you complete a game without the missions complete, you will have to complete another set before you are able to do it again. This is sure fire to work and get you unlimited amounts of gold coins to purchase everything in the store. No lasagnas though. Haven’t went that far yet.