4 stars: Ad frequency isn't bad at first but it increases pretty rapidly, hence the 4 stars instead of 5. Maybe only 30% of the ads interrupt Spotify, though, so it's not *as* annoying as it could be (I don't know about you, but ads only REALLY irritate me if they interrupt my music). It's a good game to relax with — it has the rewarding aspect of figuring out a puzzle without the stress of frustration.
3 stars: It would be fun if I actually could play several rounds without a darn commerical popping up. I play one or two games and then a stinking commerical pops up and you hit the winning coin button and more commericals pop up. I get you need sponsorships but come on! I will delete this game and move on. I will come back later if the commercials are spread out to make the game enjoyable.
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