Tendou ignores this warning. When the Worm uses a human shield, Kabuto hesitates... and then uses a kick that phases through the human to destroy the Worm. This moment showcases the genius of the writing: Tendou rejects the system's cruelty, establishing his moral code without a single line of sentimental dialogue. Rewatching Kamen Rider Kabuto Episode 1 today, the use of practical effects is astonishing. The "Cast Off" sequence—where the heavy armored parts literally explode off the suit—was done with actual air mortars in the costume. This gives the transformation a tactile, mechanical weight that modern CGI transformations sometimes lack.
But then, Tendou presses the button on the Kabuto Zecter. kamen rider kabuto episode 1
Most Kamen Rider heroes are reluctant warriors. Shinji from Ryuki fell into his role by accident. Takumi from Faiz was an amnesiac monster. Tendou Souji, played with sublime arrogance by Hiro Mizushima, is the opposite. Tendou ignores this warning
The battle shifts from a horror film to a high-speed ballet. The Episode 1 climax features groundbreaking CGI for 2006, showing Kabuto and the Worm fighting in fractions of a second, while rain hangs frozen in the air like diamonds. It is a visual feast that makes the title sequence feel earned. While the action is flashy, Episode 1 plants a dark seed. The ZECT advisor, Riku Kagami (father of the secondary protagonist), reveals the secret of the "Red Shoes System." This is an automatic programming inside the Kabuto suit. If a Worm mimics a human, the Red Shoes will force the Rider to kill the host along with the Worm—human sacrifice be damned. This moment showcases the genius of the writing:
In that moment, the series subverts every trope of the genre. Tendou doesn't beg for power; the power begs for him. This "Mary Sue" characterization could have failed miserably, but the direction treats it as comedic and cosmic destiny. The audience roots for Tendou because he backs up his arrogance with undeniable skill. No review of Kamen Rider Kabuto Episode 1 is complete without discussing the fight choreography. The Worm’s signature ability is Clock Up : a hyper-acceleration that allows them to move faster than the speed of sound, freezing the human world around them.
"Walking the path of Heaven, the one who will rule over everything."
In the climax of the episode, a Worm reveals itself and activates Clock Up. From the civilian perspective, he has vanished. The episode brilliantly captures the terror of this power—police officers are thrown around by an invisible force.