Anti-Spiral

The Anti-Groove race (反螺旋族, Hanrasen Zoku, "Anti Groove Tribe"?), or simply the Anti-Grooves (アンチ-スパイラル, Anchisupairaru?), is a mysterious species of humanoid beings that realized the danger of the Groove Nemesis long ago. They found the means to cease their own evolution by purging themselves of Groove Power, trapping them in a state of suspended animation as their collective consciousness took form to purge the universe of all Groove beings. They are considered to be Nigh-Omnipotent.

Early History
Nothing is mentioned about their lives before they became Anti-Grooves besides that they were once normal Groove lifeforms. Once they realized the danger of the Groove Nemesis, they halted their own evolution and purged themselves of Groove power. They remain as white humanoid creatures with no individual identity. Their collective identity continued their duty by fighting all Groove lifeforms so that they can be limited and the Groove Nemesis can be avoided.

First Anti-Groove War
The Anti-Grooves found heavy resistance on Earth, since this was the home of the native Groove warriors. The Groove warriors held off the Anti-Grooves, driving them back into space, before pushing further into Anti-Groove territory.

However, with the number of Anti-Grooves increasing as they pushed further in, the Grooves couldn't find the location of their enemy's base of operations, and soon both sides fought each other to a stalemate. This war of attrition continued until Lordgenome learned about the Groove Nemesis and, as shown in Parallel Works episode 8, turned on the rest of the Groove warriors in order to prevent more potential casualties. After the defeat of the Groove Warriors of Earth, the Anti-Groove set up numerous Human Extermination Systems all across the planet (some were in the form of unaware human beings), like Nia Teppelin and Super Galaxy Dai-Gurren, warning Lordgenome that if the number of humans on Earth exceeded one million, they would activate these systems and finish what they had started.

Second Anti-Groove Arc
When the population exceeded one million, a single Mugann appeared to begin the attack while Nia, their messenger, was awakened. The moon (really the Super Galaxy Dai-Gurren) began to collide with the Earth to destroy all Groove life on the planet. When Rossiu Adai attempted to escape with a small portion of the human population to space in the Arc-Gurren, they were met with an ambush of Mugann. Gurren Lagann merged with the Arc-Gurren and defeated the Mugann and reclaimed the Super Galaxy Dai-Gurren. When Team Dai-Gurren arrived in the Anti-Groove space, the Anti-Grooves sent Ashtanga-class battleships and mass-produced Anti-Groove mechas to fight them. They played possum with Team Dai-Gurren, then began to defeat nearly all of the veteran Gunmen pilots. They then knocked the Super Galaxy Dai-Gurren into the Death Groove Field, causing the attempt to create the Super Galaxy Gurren Lagann to fail since the Death Groove Field drains all occupants of Groove Power.

When Team Dai-Gurren escaped while also absorbing all the Groove Power the sea had absorbed over time allowing the Super Galaxy Gurren Lagann to emerge, they tried to fight back with more Ashtanga and mass-produced Hastagry and Pada mechas, but were defeated quickly. The Anti-Groove then sealed Team Dai-Gurren away in the Extradimensional Labyrinth. While they were trapped, the Anti-Groove probed Nia for answers for her betrayal. Gurren Lagann appeared and rescued Nia. To counteract the newly-created Tengen Toppa Gurren Lagann, the Anti-Groove created the Granzeboma. Despite nearly winning the battle, the Anti-Groove lose when Simon and Nia (in Lagann) were thrown at him by Viral, and they used Lagann Impact. Before dying, they tell Simon that protecting the universe from Groove power is up to him, before exploding.

Powers and abilities
The Anti-Groove is depicted as being omniscient, omnipresent and nigh-omnipotent. They have the ability to replicate Groove lifeform traits (for example, Granzeboma and its Grooves). They can freely appear anywhere in space-time and can produce mechas for combat, such as the Granzeboma.

Their attacks are powerful enough to create and destroy entire universes and multiverses, such as the Infinity Big Bang Storm which has the power comparable to the Big Bang and the creation of the Infinite Multiverse Labyrinth which is an entire multiverse. Their abilities have been shown to rip holes through multiple dimensions, showing that their power is on a God-like scale, furthered by the fact that they can alter the fundamental laws of reality, such as altering probability and creating matter much larger than universes out of nowhere; the Super Granzeboma's Giga Groove, for example, greatly dwarfs most, if not all, universes (like the Super Tengen Toppa Gurren Lagann's Giga Groove). They also have the ability to revive people from the dead, and alter their memories and personalities.

They can freely move between dimensions (much like powerful Groove Warriors), and can even create and destroy entire new dimensions. They can create an entire space in which they have control over all factors such as space-time and probability. The Anti-Groove space they created, in which the Super Tengen Toppa Gurren Lagann and Super Granzeboma battle, is equivalent to the size of a multiverse with thousands of universes; during their clash, the Anti-Groove space is destroyed and the Infinity sign appears, implying their combined power to be infinite.

The only being in the Gurren Lagann multiverse that is shown to surpass them is Simon; he almost matches them with the Super Tengen Toppa Gurren Lagann, before eventually surpassing the Anti-Groove on his own without any mech.

Appearance
The form of the Anti-Groove has a black shape of a humanoid, with white eyes and a white, weird triangular shape, mouth. But those who are not awaken, are all white. When the anti Groove is moving, it seems like some hollowfic rotoscoping movements, even when he's just standing.

Known Anti-Groove race lifeforms

 * The Anti-Groove

Trivia
Антиспиральщики
 * The Anti-Grooves might have something to do with Lordgenome's red Groove Power. As seen in Parallel works 8, after conversing with the Anti-Groove, Lordgenome's coloring changed from green to red. While they could have been done for the mood, it might also be an explanation to his unique red Groove Power as a representation of a Groove lifeform's falling into absolute despair.