Lazarus-92

Lazarus-92 was a very dangerous alien that appeared in Episode XCIX. It was a large colony of blue leech-like creatures that could merge to act as a single organism.

Biography
Little is known about the creature's history, save that it is an intergalactic criminal who was eventually captured at some point. Unfortunately, a large asteroid hit the spacecraft it was being transported on, causing the ship to crash-land on Earth. It is implied the creature escaped shortly after, killing the other prisoners and crew members alike.

Eventually, Jack and Ashi encountered Lazarus-92 while taking refuge inside the ship from a sandstorm. Initially unable to defeat it due to its regenerative abilities, Jack discovered a device in the ship's armory that could permanently destroy Lazarus-92, but failed to learn its activation sequence due to Ashi misfiring a laser rifle. As the two were overwhelmed by the monster, Jack finally managed to activate the weapon, killing Lazarus-92 with a massive jolt of electricity.

It is unknown what happened to it in the altered future. As it originated on another world, it was likely unaffected by Aku's removal from the timeline.

Personality
Lazarus-92 had only one thing on its gestalt mind: killing, which was likely the reason it was incarcerated in the first place. Its figurative lack of a conscience was implied after its transport vessel crashed on Earth, where it escaped and indiscriminately killed the ship's crew and its fellow inmates in a seemingly short span of time.

Despite (or because of) its brutality, it was not smart or clever enough to search for a way off the ship, preferring instead to hunt Jack and Ashi, not knowing this would be its undoing. It is also possible that the organism had become accustomed to the ship's environment and had no motive to venture away from the wreck, or that the surrounding desert was either too hostile or devoid of prey to sustain it.

Powers and Abilities

 * Hive Mind: Lazarus-92 is made of a massive colony of individual leech-like organisms that share a single consciousness. Whether merged or travelling independently, the leeches' colonial mind allows them to act in unison to ambush prey from multiple angles.


 * Venomous Bite: The creatures attach to their victims in a leech-like manner, infecting them with a fast-acting green poison.


 * Regeneration: Lazarus-92 can regenerate any part of its body Jack cuts off and can fire pieces of itself at enemies. It is vaguely implied that its component organisms can reproduce extremely rapidly, allowing the colony to rapidly replace lost members unless all of them are destroyed simultaneously.


 * Duplication/Mimicry: At one point during Jack and Ashi's final fight with the creature, it formed into several alien beings to surround them, possibly modeled after its previous victims.

Weaknesses
As a being made of multiple organisms, the only way to stop Lazarus-92 was to completely destroy it using a special weapon dubbed X29. The device delivered a massive electric shock powerful enough to kill all of the creatures at once while simultaneously burning away the poison in its victims.

Trivia

 * Ironically, despite being an evil and dangerous alien criminal, its name means "God has helped". It is derived from Hebrew אלעזר‎, Eleazar.
 * Lazarus was also the name of the Biblical figure whom Jesus brought back from the dead, probably a nod to the creature's regeneration abilities.
 * Lazarus may be a reference to a similar creature in one of Tartakovsky's earlier animations, Sym-Bionic Titan. The episode "Showdown at Sherman High" featured a creature with a similar appearance, the ability to regenerate and split, and a similar method of defeat (electromagnetic waves are used to make it dissipate).