Go-Baberu-Da

Go-Baberu-Da appeared in 2000 TV series called Kamen Rider Kuuga. Go-Baberu-Da (ゴ･バベル･ダ Go Baberu Da) is a member of the Go Tribe's Gebageru. He is code-named Unidentified Life Form #45 (未確認生命体第４５号 Mikakunin Seimeitai Dai Yonjūgogō) and B12 (Ｂ群１２号 Bīgun Jūnigō). Baberu assumes the form of a man in his forties with a headband and black lips.

When his turn came, Baberu targeted underground centers and block all escape routes to ensure the police don't interfere in his game to kill 682 people within four plays. On the third day, Baberu battles Kuuga and overwhelms him easily in his Herculean Form until Ichijo uses the Muscle-Relaxing Bullet (筋肉弛緩弾 Kinniku Shikan Dan) to weaken the Gurongi as Kuuga takes him to the location to finish him with his aided Rising Beat Gouram.

In the World of Kuuga, Baberu is labeled Unidentified Life Form #9 (未確認生命体九号 Mikakunin Seimeitai Kyūgō). After attacking the fourth "female Linto warrior", Baberu was forced by Decade to reveal the nature of the Gegeru before being destroyed by Decade's Dimension Kick.

At least one Go-Baberu-Da was part of a group of human-turned Gurongi created when they were exposed to N-Gamio-Zeda's miasma. Some were later absorbed by him in a last effort to defeat Kuuga and Decade. The remaining Gurongi died after Gamio was defeated.

Grapple Form
Grapple Form (格闘体 Kakutōtai) is Baberu's default form, equivalent to Kuuga's (Rising) Mighty Form. In this form he uses his natural strength and brass knuckles in combat.

Herculean Form
Herculean Form (剛力体 Gōrikitai) is Baberu's form equivalent to Kuuga's (Rising) Titan Form. With heightened defense in exchange for speed, he uses a war hammer as his weapon.