Initial game is very interesting and go on smoothly.. It is a good stress buster.. But as the levels increase it get very gets ver unrealistic to finish the level because everything is expensive from lands to habitats... These people tempted a lot to purchase via money... Good marketing strategy by thr game developers to earn money... The recent spring task is customized in such a way that even if u take day night to collect animals u will not finish the task by given time..