Kikkaijin Bubunger

Kikkaijin Bubunger (奇械人ブブンガー): A mosquito monster. He plants gifts given at the end of an orienteering competition with mosquito clones that put three children under his possession. One of his arms is a barbed spike can be interexchanged for a fencing sword. This sword that can pierce through armor as thick as Stronger's chest. He was Destroyed by Stronger's Stronger Electro Kick.

Bubunger was one of four dark cloak-wearing Kikkaijin that tormented a group of civilians in a nightmare induced on them by Kikkaijin Hasamigani while they were travelling on a locomotive.

Bubunger was part of group of Revived Kikkaijin born from a single Satan Bug. Posing as scrapped Kikkaijin in the Black Satan base, they attacked Stronger, Tackle and Tachibana. After a brief skirmish against Stronger, the revived Kikkaijin were reverted back to the Satan Bug.

Later returned as part of the Revived Kaijin Corps. Strangely, when revived, his body was that of Kikkaijin Dokugaran. These revived kaijin were destroyed by the 6 Riders. Shortly after, he was once again revived as part of a new Revived Kaijin Corps. They were all destroyed by the 7 Riders.