Ads with a side of gameplay. They pop up every 50 seconds, I timed it. I want to like this game. It's stylish and the animations are smooth. But the ads. Dear God the ads. I had more fun playing the demo for a merge game inside the ads than this game, because at least I got to play something. Also, watching ads is the only way to make the power ups worthwhile, because they're way too expensive to scale naturally. And the game is a crawl unless you have the power ups to at least 200%.