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
-Can spawn naturally in taiga biome at night, but the chance for it to spawn is very rare
-Will change it skin when the night fall
-It’s very hard to see when it’s in the dark
-The only way to defeat siren head is ranged weapon
-The Boss version will have more skill than the normal one
-Health of the boss is the date siren head was discovered

Cartoon Cat
DO NOT SPAWN HIM, HE IS CURSED, he can do the things no mob in Minecraft can do, extremely hostile
He is really stretchy so he can travel fast with his stretched body
He can change his size depend on his enemy or when his enemy is flying
His health is the date he got discovered in the wiki
Warning this one is creepy he could go away and return
He can grow more hand to help him fight everything.

DISCLAIMER: This is an unofficial application for Minecraft Pocket Edition. This application is not affiliated in any way with Mojang AB. The Minecraft Name, the Minecraft Brand and the Minecraft Assets are all property of Mojang AB or their respectful owner. All rights reserved. In accordance with http://account.mojang.com/documents/brand_guidelines