To start with there is not much of a tutorial, so you kind of just trial and error. The crystals are not easy to get, so don't waste them. Annoyingly there are adverts and if you are too quick and press the screen you could spend your precious crystals on useless things, like I did on removing the garbage trees for 10 crystals...but nothing disappears when I done it! Bit of a shame that is. Other than the crystals I like the game and with a bit of patience you can progress. I like the little storylines and the graphics.