Minecraft PE 0.16 is an update that adds a new dimension to the game. It has a new epic final boss and lots of new blocks and exciting items. You can now use skulls to blow things up and kill almost everything in its path. The game also has a new star for the lower world, which you must locate before the boss shows up.
Other notable features of Minecraft PE 0.16.0 include the underwater fortress, ancient guardians, the Searcher, and a variety of new mobs. The underwater fortress is located on the bottom of the ocean, and the boss attacks with a powerful ray. This ray has a radius that is too large in some rooms, so beware of this when exploring it.