it is a mod that converts most of the minecraft mobs in to mutants (original creatures still exists) for example The Mutant Creeper 400px it can create thunder and if you kill it, it will drop an egg like this400px the egg will hatch and turn into a baby creeper and you can also put the egg on your head. if you right click the baby creeper it will sit down like this400px it will act like a dog if a creature attacks its owner it will defend him (not in sitting mode) his explosive power is very big (even bigger than normal creeper explosion) if its health goes down you can heal it with gunpowder or TNT. Moving on. The Mutant Zombie. The Mutant Zombie is big and its height is 3 meters tall (3 blocks tall) The Mutant Zombie has three attacks 1.Melee it will throw you to the air and hit you back to the ground 2.Ranged it will hit the ground and shards of blocks will appear and some blocks will turn into other blocks like stone-cobblestone, grass-dirt400px 3.Special it will destroy blocks near it and when it stops all the blocks that's been destroyed will change into zombies. When it dies it will come back up thats Wye you have to burn it, if you don't you must defeat it 3-4 times at the 3 time of its defeat it will disappear some times but it is still alive its a bug. The Mutant Enderman. The Mutant Enderman is a really strong opponent it has four arms, can grab the blocks that normal enderman can grab and he can throw it away. at the old version Mutant Endermen looks like this 400px it also doesn't move in the old version. When its health is low it will blow up.