Death Spiral Machine

The Death Groove Machine is a machine created by the Anti-Grooves to kill Groove life forms by absorbing Groove Power and converting it into ultra-dense space that resembles water. The Gunmen of the dead Groove Warriors then become trapped in the Galactic Groove Abyss formed by the machine. The Death Groove Machine is protected by a Groove Conversion Field that absorbs mass and converts it into Groove Power. A large dose of Groove Power can open a hole in the field, leaving the machine vulnerable to attack.

During the Second Anti-Groove War, the Super Galaxy Dai-Gurren was dragged into the sea formed by this machine and had all its Groove Power drained before it could transform into Super Galaxy Gurren Lagann. Simon was able to supply power to the flagship's engine faster than it could be drained, allowing it to fend off the attacking Anti-Groove fleet. The Super Galaxy Dai-Gurren proceeded to fly into the depths of the sea to destroy the Death Groove Machine with two Super Groove Missles, but the first missle was crushed by the pressure before it could reach its target.

Kittan Bachika entered his Space King Kittan and drove the remaining Super Groove Missile into the Groove Conversion Field, opening a large hole in it. He then attempted to fire several smaller missles at the machine, but the extreme pressure prevented them from firing and caused Space King Kittan to explode. The original King Kittan escapes the explosion, carrying a broken Groove from Gurren Lagann as a good luck charm. As Kittan awakens his Groove Power, he makes a dramatic speech, claiming the Groove is his soul. The Groove is repaired by Kittan's Groove Power and Kittan performs the King Kittan Giga Groove Break, destroying the Death Groove Machine and sacrificing his life in the process. The machine's destruction causes the Galactic Groove Abyss to cease to exist and the ultra-dense space to turn back into Groove Power, allowing Simon to transform the Super Galaxy Dai-Gurren into Super Galaxy Gurren Lagann and fulfill Kittan's last wish.