Gunpowder... Spice... And everything nice. These were the ingredients chosen to create the perfect creeper minion. But Professor HippoMaster accidentally added an extra ingredient to the concoction... Chemical X! Thus the Mutant Creatures were born
Screenshots:
Mutant Zombie



Mutant Creeper






Changelogs:
v1.1.4

  • Fixed mutant creeper's melee attack being too low
  • Added code for mutant enderman, but didn't fully implement it yet
  • Made mutant zombies die if not killed after resurrecting three times
  • Decreased the spawnrate of the mobs again
  • Added a configuration to control the spawnrate of the mobs (range of 1-20 with default as 10)
  • Attempted to fix a few glitches with mutant zombie's animations
  • Made mutant zombie's attack range bigger
  • Added feature where mutant creepers won't grief if it is in the game settings
  • Made mutant zombie slightly faster when it has a target
  • Updated to minecraft 1.4.5

Installation:

  • Extract the mod zip
  • Locate .minecraft
    • Click Start and type %appdata% into the Search area
    • Click the folder that is called Roaming
    • There should be a folder inside called .minecraft

  • Move the mod zip file to .minecraft/mods
  • Play!

Requires: Minecraft Forge

Credits: thehippomaster21