The Global Freeze is an event which occurred when the Roidmudes used their Heavy Acceleration powers to trap one quarter of the planet in slowdown during their uprising.
History[]
The first Global Freeze occurred on April 8, 2014, at roughly the same time the Helheim Forest crisis was happening. On that date, the Roidmudes launched an attack centered in Tokyo in which they used their Heavy Acceleration to trap Japan and the northeast region of East Asia in slowdown while they made their attempt to destroy humanity. It lasted until the Roidmude uprising was put down by Kamen Rider Protodrive.
Although the Global Freeze was stopped, the Roidmudes would continue their uprising and make efforts to instigate a "true" Global Freeze that covered the entire planet. To accomplish this, the Roidmudes needed to achieve the "Promised Number", a ritual which required four Advanced Roidmudes to achieve "Super Evolution" states by experiencing an influx of their programmed emotion. To make the process easier, the Freeze Roidmude developed the Neo Viral Cores which enabled Low-Class Roidmudes to raise their power by combining with a human.
After both Heart and Brain were able to achieve Super Evolutions, a new player emerged who also wanted a Global Freeze to happen but for different reasons - Tenjuro Banno, the creator of the Roidmudes, who had returned as Gold Drive and sought to use the Global Freeze to dominate the human race. Banno tricked the Medic Roidmude into undergoing a surgery that would grant her a Super Evolution but make her his mindless slave in the process, allowing him to use her to blackmail Heart and Brain into going along with his plan. Banno forced Heart and Brain to perform the "Promised Number" with him and Medic to give energy to Sigma Circular, a living weapon through which Banno intended to kickstart a second Global Freeze.
With Sigma now fully powered up, Banno activated it to create a "true" Global Freeze that encompassed the entire planet and began the process of forcibly digitizing all of humanity. The second Global Freeze was prevented by Kamen Rider Drive and Heart destroying Sigma, while Banno himself was killed by Kamen Riders Mach and Chaser.