Mutant Creatures Add-on

The Mutant Creatures Add-on turns 12 of the mobs in Minecraft PE into mutants with incredible powers. But their great powers also come with a changed appearance which makes most of them look more scary. If you are looking for an add-on to increase the game difficulty a few notches then this is a great option.
Mutant Zombie & Husk: This is basically a beefed up version of the ordinary zombie. Its body is much larger and this positively affects its ability to fight and it also runs faster.
Mutant Wither Skeleton,Mutant Enderman,Mutant Iron Golem,Mutant Spider and Cave Spider,Mutant Zombie Pigman,Mutant Wither Boss.