Tomizo Todayama/Zi-O

In 2005, Tomizo Todayama (戸田山 登巳蔵) was Kamen Rider Todoroki (仮面ライダー轟鬼).

2005: Rejoice! Echo! Roar!
Todoroki was first seen as he fend off Another Hibiki from Zi-O Kuuga Armor and Geiz Wizard Armor easily with his Ongekiken Retsurai. He claimed that whenever an Oni misbehaves, it is an Oni duty to punish the troubled Oni. He then transformed to his Oni form and manages to gives Another Hibiki a hard time. However, before he could finish the Another Rider with his Ongekizan: Raiden Gekishin, a Fireball hit him, effectively allow Another Hibiki to flee. Todoroki then continuing his chase in dismay.

Forms
Todoroki Rider Statistics Ability Parameters:
 * Rider Height: 7 shaku (approx. 212.1 cm., one say 212 cm. )
 * Rider Weight: 42 kan (157.5 kg., one say 157 kg. )
 * Punching Power: 8000 kan (30 t.)
 * Lifting Power: 650 man-power (6.5 t.)
 * Kicking Power: 10666 kan (approx. 40.0 t.)
 * Maximum Jump Height: 38 ken (approx. 69.1 m., one say 69 m. )
 * Maximum Running Speed: 1 chō per 5 sec. (approx. 100 m. per 4.6 sec., one say 5 sec. )

In this form, Todoroki is a green demon. This is his basic form and the easiest form for him to reach. To become this form, Todoroki simply needs to pluck his brace strings, the vibrations from the strings cause his body to be hit by massive lightning bolts, changing him into his Oni form. Todokori also gains a second "oni face" which is a crest that forms on his forehead. Unlike most Kamen Riders, Todoroki does not wear a suit; rather, his demon form is his true form.

Appearances: Zi-O Episode 33

Devices

 * Henshin Kigen - Onjou: A bracelet-like transformation device.
 * Ongekishin - Raigou: A device that attaches on his belt for uses of finisher attacks.
 * Ongekikou: A device that attaches on his belt for uses of finisher attacks.
 * Disk Animals: Todoroki's disk-like support robots.

Weapons

 * Ongekigen - Retsurai: A guitar-like weapon.
 * Ongekibou - Rakurai: A pair of drumsticks.
 * Ongekigen - Retsuzan: Zanki's weapon, Todoroki uses it once after Zanki's death.

Attacks

 * Kitōjutsu - Raigekiken (鬼闘術・雷撃拳) Charging himself with power, Todoroki is able to directly attack any Makamou with electricity. He can do this through a punch or kick.
 * Kitōjutsu - Onizume (鬼闘術・鬼爪) Forms claws from his hands to stab and slash at Makamou. These claws are nearly unbreakable, thus making them one of Todoroki's most useful weapons.

OnGeki Finishers
Ongeki Zan - Raiden Gekishin (音撃斬・雷電激震) Todoroki stabs his weapon into the body of a large Makamou and changes it into its guitar form. He plays the guitar in a wild and fast manner. By doing this, the vibrations of his weapon are directly transmitted to all the organs of the Makamou, causing it to explode.

Portrayal
Tomizo Todayama is portrayed by Shingo Kawaguchi (川口 真五). As Kamen Rider Todoroki, his suit actor is Eitoku (永徳).

Appearances

 * Icon-zi-o.png Kamen Rider Zi-O
 * Episode 33: 2005: Rejoice! Echo! Roar!
 * Episode 34: 2019: Heisei Oni, Reiwa Oni