Thank-you FallNight really appreciate this detailed review. There are 2-3 levels made hard on purpose so that player not only enjoy the environment but also try to handle the difficulties in the game.
And as a thank-you gift๐ here is a little hint for level 10 & 11 try using A & D key at same time ๐ and do let us know if you are able to clear those levels ๐. For level 15 you can always skip few steps to save time ๐ ๐