Was 4 stars after playing for awhile, but I dropped to 2. It's still fun, but not as much. I have invested money playing in the past, but not now. You can win without paying, it just takes longer. The unlimited life needs a pause feature. They don't care if you complain. Now, they have Hard and Super Hard levels. I've already spent days trying to clear regular levels. Unnecessary feature. Coins and Power ups don't help you win. I have over 25,000 coins and 90+ power ups because they don't help.