|This article is about a Worm in Kamen Rider Kabuto.|
Subst Worm (サブストワーム, Sabusuto Wāmu, 39 & 40): A former servant of Uca Worm who turned on her mistress for "betraying herself and the Worms." He can swim, has a thick shell that allows him to dive up to 6 kilometers underwater, and can fire energy arrows from his right arm. Destroyed by Hyper Kabuto's Hyper Slash.
Kamen Rider G
A member of Shade under Daido Oda transformed into Subst Worm. He fought alongside Brachypelma Worm Viridis, Acarina Worm, and Cochlea Worm, against Kamen Rider G who destroyed them all. 「Kamen Rider G」
Kamen Rider Decade
World of Kabuto
In the World of Kabuto, a Subst Worm posed as a young man and targeted Mayu, chasing her and Natsumi down until it is destroyed by a shockwave from Mayu's transformation into the Sisyra Worm. 「The Grandma Way of Taste」
All Riders vs. Dai-Shocker
The Subst Worm, 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. 「Kamen Rider Decade: All Riders vs. Dai-Shocker」
OOO, Den-O, All Riders: Let's Go Kamen Riders
To be added
Behind the Scenes
Subst Worm was designed by Yasushi Nirasawa (韮沢 靖, Nirasawa Yasushi).