|Gender||None (referred to as male)|
|Franchise||Sonic the Hedgehog|
|Vehicles and/or Gadgets||None|
|Occupation||Guardian of the Chaos Emeralds|
Chaos is an immortal and ageless, god-like creature composed entirely of concentrated, water-like chaos energy. It was trapped inside the Master Emerald for thousands of years before being released by Doctor Eggman in a plot to conquer the world.
The original guardian of the Chaos Emeralds and the Master Emerald, Chaos watched over a Chao colony in ancient times until an attack from the Knuckles Clan led to it being consumed by a fury that threatened to destroy the world. However, it was sealed in the Master Emerald before it could succeed. After millennia of imprisonment, it was released by Dr. Eggman in a plot to conquer the world. Despite initial cooperation however, Chaos turned on Eggman and tried to destroy the world, but was calmed by Sonic and departed for places unknown. Since then, Chaos only appears in times of great crisis.
Chaos was originally a normal Chao, but prolonged exposure to the energy of the Master Emerald caused it to mutate into a strange water-like creature. It used its new powers to guarantee clean water around the altar of the Master Emerald, and to protect its fellow Chao. However, about four thousand years ago, the leader of the Echidna tribe, Pachacamac, attempted to steal the Emeralds for use against his enemies. Tikal, his daughter, resented this idea, worrying that it would upset Chaos and it would bring wrath to them, but Pachacamac did not want to hear it. His warriors stormed the shrine, where the Emeralds reside. Many Chao were injured in the process, as was Tikal herself. Chaos, in a fit of rage, absorbed the negative power of the seven Chaos Emeralds, and transformed into Perfect Chaos. As a result, it became a massive water creature. Floods destroyed the civilization, and Chaos avenged its Chao brethren. In order to prevent Chaos from destroying the world, Tikal linked her consciousness with Chaos' via a prayer, and sealed them both into the Master Emerald. It is probably at this point in history that the Emeralds were first called the "Chaos Emeralds".
Chaos lay dormant in the Master Emerald for thousands of years until Dr. Eggman, having read ancient tablets describing the fall of the Echidnas and Chaos, released it by shattering the Master Emerald. Chaos swore to follow Doctor Eggman as it knew that he could get the Chaos Emeralds back for it. Sonic the Hedgehog eventually encountered Chaos as it was attacking a building and several Police officers, and easily defeated them. Because of its appearance, Sonic initially referred to it as "big drip."
Eventually, Eggman's plans, as always, fell through at the hands of Sonic and his friends. Chaos eventually abandoned Dr. Eggman, destroying his Egg Carrier in the process, and collected the Chaos Emeralds for itself. Once they were in its possession, it absorbed the negative powers of the Emeralds once again and transformed into Perfect Chaos to destroy Station Square in a rage. Having only taken the negative energy, Chaos discarded the remnants of the Chaos Emeralds. This proved to be the means to Perfect Chaos's downfall as Sonic absorbed the positive energy of the Chaos Emeralds and transformed into Super Sonic, eventually defeating it and in the process, its evil mindset was returned to its regular state and changed back to its original form. Tikal then approached Chaos, and together they disappeared in a flash of light. Though its whereabouts are unknown, it is presumed that Chaos returned to watching over the Chao with Tikal.
Chaos is a lifeform with a body made of water-like energy. The forms it can take are many, although its most recognizable form is its Chaos 0 state. In this state, Chaos possesses a humanoid form with disproportionally long arms and legs compared to its torso. It has thick forearms with three large fingers on each hand, a short stump for a tail, and long feet with two large toes each. It also has two fin-like protrusions on the back of its head, sharp flaps on each side of its head, and a tall bulge on top of its head. It also possesses no facial features, except for two pupil-less limegreen eyes. Lastly, it has a round pink brain inside its transparent head, with a brain stem on the bottom.
Said to have a warm heart, Chaos is primarily a very loving and gentle creature who cares dearly for the Chao it protects. Mainly watching over the Chao as an inert pool of water, it only becomes active in times of danger, and only attacks when the Chao needs protection. However, it is noted to have a bad temper; after seeing its sacred precincts being invaded by Pachacamac and his men, Chaos became filled with anger and sadness.
Following the attack on its precinct several thousand years ago, Chaos became corrupted by its own negative emotions, causing to forsake its peaceful and passive ways and become a rage-filled monster driven only by its own immeasurable anger. Its fury proved to be so great that it wanted nothing more than to destroy the world out of spite, even after getting revenge on those responsible for angering it in the first place. In its corrupted state, Chaos remained eternally determined and vengeful, as its desire to bring the world to ruin persisted even after several millennia. However, after Super Sonic neutralized it, Chaos returned to its previous peaceful and gentle demeanor.
Powers and abilities
Chaos is an incredibly strong creature whose power is so great that it is revered as a deity. Even at its weakest, Chaos is said to possess immeasurable powers.
Chaos possesses the ability to absorb energy-based items -such as the Chaos Emeralds and the Keystone Device- and its form, power and skills change and increase with each item it absorbs.
Being made of liquid Chaos Energy, Chaos is also nearly indestructible and can mimic the properties of water. It has complete control over its physical structure, allowing it limited shapeshifting, such as elongating its forms, change its shape into fluid liquid, and if dissipated, it can reconstitute itself again.