Game bought for my daughter (9 years). To understand "why and how" when she had difficulties, I hired a part !! and now ... too late !!! ... We almost hassle to play !!! The placing of the "2D" to "3D" is too great !!! we must think on several levels, my daughter is doing very well and will catch me if I did not play more than it !!!! The levels are all more amazing than the last. My advice to anyone who will play the game and thinking!