Five-star game ruined by cash-grab pressure... Battle Cats would truly be a five star game, except the difficulty level was made so unpleasant you're compelled to pay to win. It's good enough that I haven't uninstalled it yet (as would usually be the case). It's not a casual game, and requires specific detailed knowledge of the rules and strategies. The treasures are important, as is knowledge of the various cat strengths and combinations.