5 stars: Very good graphics and runs very smooth. I love how you can get the premium currency without having to spend real money. Lots of dragons to choose from and many options for things to do. A multi-player game mode where you can face off against other players would add some more fun to the game. Overall I Recommend this game.
5 stars: The game is surprisingly great and easy to play. Though their are a lot of ads, and annoying things popping up about buying a certain dragon, nothing is wrong with it.
4 stars: Game is good for an offline game should've been a 5 star though if there's a habitat sell option, I've tried everything but I can't sell my other habitats, that's the only thing that game lacks for me as I can't re-arrange the slots.
3 stars: Nice, but you can't choose which skills you can use to defeat your opponent. It's quite frustrating if you don't have enough money to upgrade your dragon.
2 stars: This game is ads ads ads every few seconds. Other than that it is alright. If you can take out some of the ads I'm sure you get better ratings
...