have purchased the app as GratisApp of the day, the normal € 1.60, I find still ok. The installation described problems gabs with me not, trouble-free installation on the score. 3 The app, however, is about 360 MB in size, possibly because it is tuned. The game, control seems good, but have only the lower level played. Graphic is fine, sound could be better, but it's a more effective game for ists ok.