These mods add currently more Mobs in your Minecraft World. If you kill the normal Mobs, that will spawn in different Biomes you'll get Biome Orbs ( Desert Orb, Forest Orb etc...) These will help you to summon the Biome Boss!
This Boss MODS For MCPE is can only be applied with BlockLauncher application and you need install the full version of MCPE and BlockLauncher in your smartphone or tablet.
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