Experiment Zero, the start of it all. Zero is a tall figure capable of reaching speeds almost as fast as a running villager. Zero takes fascination in watching those around it although, does not take kindly to being touched. This specimen is curious and hunts down chicken for its prey. Zero is considered to be a non-threat due to confrontation being easily avoidable by steering far from it.

Experiment Four is bulked up and equipped with blades for hands, giving it an advantage to almost every other mob. Four hits hard and attacks anything in his sight with the relatively same range as a player. Zero is a distant ancestor to Four meaning it can see players from incredible distances.

Experiment Nine is a brainless, ruthless killer with no other intent but to kill anything it sees. Strikes a resemblance to the Endermen, which would make sense because Nine is just a massively drugged up and experimented on Endermen. He may have a low functioning brain, but sometimes if Nine knows it cannot win a fight while in water it will attempt to retreat to somewhere safe.

Experiment Twenty Four is a familiar face which later would be modified into a more successful breed called the Mongoose. Twenty Four is a rehabilitated and reformed Endermen designed to protect worlds from threats such as harmful mobs like Zombies, Creepers and even other experiments! Twenty Four may not be as strong as most other experimentations however, they like to travel in groups but will sometimes split-up to cover more area. Twenty Four's armor will keep him safe from arrows, fire, lava, fall damage, potion effect, cactus and tridents. Twenty Four may be seen daydreaming while working but are far from lazy, they are just missing certain parts of their brain. Despite Twenty Four having an aggressive nature, it is friendly to Players, Villagers and Golems although Golems see Experiment Twenty Four as a threat therefore will provoke a fight.

Failed Experiment Eleven otherwise known as Engulfed was once a Player but after many experiments, he was never perfected thus turned into a murderous psychopath. Eleven is a walking, smoking and breathing furnace which will set targets on fire and will attack a couple other mobs. It can spawn in the Nether/Overworld and is immune to lava and fire.