Since directly comes joy !!!

This is a very successful remake of the ancient C64 or Amiga implementation.
The graphics and effects are up to date the time the concept was already used to break an hours before the computer.
The operation via touchscreen (in my case, Kindle Fire HD) is initially a bit strange, but still learn with a little perseverance.
The higher the level is set, it just comes with the touch operation example when taking a Fort's on reflexes and speed.
That takes a bit initially but it turns a pretty fast.

I would recommend it without reservation. The game brings hours of joy to all who know it already or for newcomers.
Price-performance is top, if you consider the long-lasting fun for little money.