During the Fierce-Confrontational rebellion, Beast-Fist founder Bruce E was betrayed and murdered by three of his students who would go on to become the Kenma of the Confrontation Beast-Fist Akugata. After the Kenma were defeated and their souls imprisoned within the Kenma Bracelet, Sha-Fu and the other Kensei learned that their master's soul still remained and used the Virtuous Beast Sword to carve a vessel for it out of rock, which would later become SaiDain.
Publication Information
- Gekirangers : Beast-Fist God SaiDain
- Japanese : 獣拳神サイダイン
- Version : Juken Sentai Gekiranger Series
- Pilot : GekiChopper
- Season : Juken Sentai Gekiranger
- Announcement :
- Length : 103 m
- Width : 58 m
- Height : 52 m
- Weight : 3800 tons
- Speed : 600
- Power : 35,000,000
- Appearances : Gekiranger Episodes 34-48, Go-Onger vs Gekiranger
Years later, the Virtuous Beast Sword was entrusted by the Kensei to Ken, only to have it stolen by Mele who gave it to Rio so the two of them could enter Jugenkyo and take Bruce E's power for Rio's use. The Gekirangers and the Kensei followed them and during the battle, Ken was able to reclaim the Virtuous Beast Sword and, with it, also obtained the awakened SaiDain as his personal GekiBeast.
When SaiDain awoke, the Soul of Brusa E was released on the Gekirangers as well as Rio and Mele in a rain of light called Beast Power Bloom, multiplying their strength tenfold and showing that, despite the difference in their philosophies, Brusa E looked favorably upon both Beast-Fist styles while the Kensei and Kenma were both excluded due to them straying from Beast-Fist's true path.
Formation:
Beast-Fist Giant God SaiDaiOh
- Device : Beast-Fist Giant God SaiDaiOh
- Pilot : GekiChopper
- Original Form : Beast-Fist God SaiDain
- Announcement :
- Length :
- Width : 40 m
- Height : 70 m
- Weight : 3800 tons
- Speed : 650 km/h
- Power : 35,000,000
- Appearances : Gekiranger Episode 34-39, 41, 43-45, 48
- The Smashing Great Exploding Connection, where SaiDaiOh slams its sword onto the ground, sending an explosive shockwave into the target.
- The Great-Great Smashing Great Slash, SaiDaiOh's signature finisher as a standalone mech, where the Smashing Big Sword extends its blade before SaiDaiOh slashes the opponent three times, creating the "Dai" as the enemy is destroyed.
- The Great Iceflow Mountain, where SaiDaiOh spins the sword at insane speeds, creating a gust of freezing wind that freezes the target in place. At the end of Lesson 43, Ken used it to create a giant iceberg which he then carved into a sculpture of the young boy Carl's dead mother to grant the child's Christmas wish of seeing her again.
- Device : SaiDaiGekiFire
- Known As : Herculean Giant SaiDaiGekiFire
- Pilot :
- Original Form : Beast-Fist God SaiDain
- Announcement :
- Length : 103 m
- Width : 58 m
- Weight : 7750 tons
- Speed :
- Power : 62,000,000
- Appearances : Gekiranger Episodes 35, 40, 43
- Combination :
- SaiDain can combine with GekiGorilla to form the centaurish SaiDaiGekiFire, with GekiWolf riding its shoulders and GekiGazelle and GekiPenguin running alongside it. In this form, SaiDaiGekiFire combines the energies of Kageki, Shigeki (GekiViolet), and Geki Hard Kensan (GekiChopper), into its attacks. It's finisher is Fire Smashing Big Assault, where SaiDain knocks the opponent into the air with a double slash of its horn where GekiWolf, Penguin, and Gazelle attack it in turn before GekiFire finishes it off with its double swinging fists.
- Device : SaiDaiGekiTohja
- Known As : Beast-Fist Giant SaiDaiGekiTohja
- Pilot :
- Announcement :
- Length : 103 m
- Width : 54 m
- Weight : 6250 tons
- Width : 58 m >
- Speed :
- Power : 50,000,000
- Appearances : Gekiranger Episode 42
- Combination :
- GekiTiger can also combine with SaiDain to form SaiDaiGekiTohja, with GekiWolf on its shoulders and GekiCheetah and GekiJaguar running alongside him. It's finisher is the Smashing Great Firm-Firm Attack, where GekiTiger spins while GekiJaguar, Cheetah, and Wolf run in circles around SaiDain; creating a tornado that deflects enemy attacks and knocks them into the air where they are attacked by Jaguar, Cheetah, and Wolf before SaiDain finishes them off with a triple slash of its horn.
- Device : SaiDaiGekiRinTohja
- Known As : Beast-Fist Giant SaiDaiGekiRinTohja
- Pilot :
- Announcement :
- Length : 103 m
- Width : 58 m
- Weight : 7650 tons
- Speed :
- Power : 65,000,000
- Appearances : Gekiranger Episode 47, Go-Onger vs Gekiranger
- Combination :
- SaiDaiGekiRinTohja is the true form of SaiDaiGekiTohja as well as the final and ultimate Beast-Fist combination; utilizing GekiBeasts and RinBeasts to unite all aspects of Beast-Fist martial arts: Geki, Shigeki, Geki Hard Kensan, and Ringi. It can attack with the RinChameleon's tongue as a rope dart/whip, fire Ringi blasts from the RinLion's mouth on its torso, and it's finisher is the Smashing Great Fierce-Confrontational Slash where SaiDain knocks the opponent into the air with a double horn slash, allowing GekiWolf, Cheetah, and Jaguar to attack them in midair before GekiRinTohja finishes them off with a spinning slash of its sword. SaiDaiGekiRinTohja's power was so great that even Long was unable to stand against it. It later reappeared in the Go-Onger team-up to defeat Long Banki and seal him.
- Main Article : Gokai Great Geki-Geki Beast
- Origin : Earth
- Version : Kaizoku Sentai Gokaiger Series
- Type : Greater Power
- Pilot : Gokaigers
- GekiBeasts are the Greater Power of the Gekirangers which is utilized by the Gokaigers using their Ranger Keys. As one of the five personal GekiBeasts, a Geki manifestation of SaiDain was summoned by the Gokaigers to allow GokaiOh to perform the Gokai Great Geki-Geki Beast finisher which destroyed Cosmic Kenpō Master Pachacamac XIII.
