If you the one who liked scary thing and challenging to play in your survival world, then this add-on is for you it added the scariest mobs and extremely creepy mobs into your game

This boss mob is really tall, the height of it's about 17 blocks
Feature:

-Health: 8000
-Damage: 20
-Will attack players and villagers
-Can knock player away
-Siren head will pick the player and other mob if it think it can
-Siren head can also throw it enemy
-Siren head will use soundwave

Warning the mob can make a very disturbing, creepy sound.

Disclaimer: This is an unofficial application for Minecraft Pocket Edition. This application is not associated in any way with Mojang AB.