You spend a fair amount of time (and expense) working your way through only to find when you get to level 40 that there are no more levels available to play. It's very disappointing and there is absolutely no point in playing any more. It's a shame because it was one of my favourite games to play. Also, there is no explanation as to what you are meant to be doing, how to achieve targets, etc. you just have to work it out for yourself.