Slide puzzleast is a lot of fun at first with rewards for finishing every 10th level and gaining every 20th star, but the more advanced one progresses in the game, the more it feels like the house always wins. Coin rewards initially start out big, but gradually get smaller and smaller. If you only need a few more moves to clear a level, but the awarded number of moves runs out, you can buy 5 more for 100 coins. No problem early on, but as those rewards start to dwindle, you’ll need to fork over some real cash for some in-game coinage. Considering the game controls how “lucky” you are to collect similarly colored blocks (the method to clear a level), it appears the designers have built in unfavorable odds that cater to the impatient player who is willing to spend actual money for some in-app coins and power ups. Power ups are another commodity that are randomly awarded and, in some cases, needed to finish a level. If extra coins or power ups are in short supply, you’ll be waiting a long time to finish a level. Bottom line: fun to play, but either be patient or have money to burn.