This is an incredibly cool game and it should be on every tablet or phone phone. Highly addictive and easy game play. Definitely 5 stars. However, the biggest problem is the safe game. For whatever reason, the developers load the game content from local rather than pulling from a much newer save game from the cloud. This is especially evident if you want to play the same game on two devices. There should be an option to restore the game data without losing all previous progress.