Other games are PAY TO WIN,and that is understandable. but this game is worse. It's PAY TO PLAY/PROGRESS . . At first, it is really boring. Stages are too easy. Kinda feels like it takes forever to get to the real challenge of the game. And then when you're starting to reach lvl30's, it will be impossible to progress because stages become OP, and you cannot go back to the cleared stages to farm. You can literally do nothing! .. You will be stuck in a rot. Unless you spend to uprage your heroes