Its a new kind of FUN!!!

Makes the gears in your brain workout. It starts off easy so you can figure out how the game is played. It challenges you at each level and adds in a little twist to make it interesting.
Once you pass a level, it makes you feel accomplished and want to try the next one.
The only downside I can think of is that youll need to pay for each new pack at .99 cents. But I honestly think its way better than those other games that place annoying ads(especially video ads) at each level or a pulls you in to subscribe & pay big $ so you can play more locked levels. Those games I delete.
This game is a keeper and I dont mind paying for a new pack.

Crushing Steadily Up about Puzzle Retreat