The second part is in principle as the first. But there come to ostriches whose feathers you have to collect to process them further. Also provides the second part of an infinite game. What I lacked in the other two parts. The rest is the same principle as in the first part. Only some level have become extremely difficult to achieve Gold. Do you think some time on strategy. But it's entirely feasible.
The third part, traveled a bit around the world. But on the whole (though presented differently ie times lay geese, sometimes chicken, sometimes penguins etc. eggs) it is just about the same. Only those who play all three parts one by one, to be careful in the third part, because the button for demolition and Okay (with the truck) are reversed. Which sometimes leads to confusion, which is not very helpful in a time game. The third part, however, is of strategy, even more difficult as part two. Some I have succeeded in spite 100maligem attempt not to gold. In the long run that is of course annoying.
In summary, the game is a great time management game, with little extras and some (but aushalbaren) annoying factor.