Cassis Worm

Cassis Worm (voiced by Tak Sakaguchi) is actually Reiji Nogi who loves to cause annoyance to the Riders in Kamen Rider Kabuto.

Nogi is an even stronger Executive Worm, entering the scene after Uca Worm is destroyed. Reiji likes showing off his powers and taunting the Riders from time to time. He wants to attack and seize Area Z, to take the Masked Rider System for the Worms

Unlike the other Worms seen so far, Reiji is perfectly capable of fighting without transforming into its Worm form. In fact, Nogi is able to utterly overpower Kamen Rider Gatack while the former is still in his human form while the latter is transformed. His favoured fighting style in human form is rapid kicking and his weapon of choice is a cane.

He has the "Life of Immortality" ability, which enables him to evolve into a new form each time he gets defeated. Each of his forms has an exclusive natural fighting ability and a unique power of his own. Cassis Worm is easily one of the most powerful foes the Kabuto Riders have faced. In its first form, Hyper Kabuto is helpless before its time-stopping ability. His second form effortlessly defeats Gatack, TheBee, the Hopper brothers and Sasword. It takes a triple Rider Kick and a Maximum Hyper Cyclone to kill him in this form. He is eventually permanently destroyed in his third form, Cassis Worm Clipeus, by Kamen Rider Gatack and the Hopper Riders.

Cassis Worm Gladius, among many other revived monsters, was part of the Dai-Shocker army in the World of Decade that was fought and wiped out by a gathering of 25 Kamen Riders.

Dimidius
His unique power is "Freeze" or the ability to stop the flow of time to the point in which even the power of Hyper Clock Up is purposeless. He was defeated by Hyper Kabuto's Maximum Hyper Cyclone.

Gladius
His power in this stronger form is advanced into "Absorb" or the ability to absorb other Worms and tachyon energy to gain their powers. He can only absorb tachyon energy sequencially. Simultaneous application of tachyon-based attacks will result to neutralization of the absorbed tachyon. He was weakened by Kabuto, Gatack and Kick Hopper's (Triple) Rider Kick and ultimately defeated right after by Hyper Kabuto's Maximum Hyper Cyclone.

Clipeus
His power in this form is "Clone" or the ability to split himself into two entities. In addition to the blade arm gained in the previous form, he now gets armored plates and shields across his body. The first copy was destroyed by Gatack's Rider Kick, while the second one was destroyed by Kick Hopper's Rider Kick and Punch Hopper's Rider Punch.

Trivia

 * TBA